The pros and cons of using LPG butane or propane in your car or truck

In this video we discuss the advantages and challenges in converting a gas automobile engine to dual fuel with autogas LPG

[@blitzroehre1807]

Germany here: Got a Magnum 3,5 and have been running it on LPG for 12 years now, no issues. Companies like Prins offer modern electronic LPG add-ons here, saved tons of bucks on fuel..

[@telocho]

It's not a constant stream of gas, the engine pulls a little vacuum on the low pressure side (through the venturi of the mixer under your air cleaner), and inside the vaporizer is a diaphragm reacting on it and opening and closing a valve depending the need. The mixture screw is needed to set your CO2 levels during idle for emissions. It's crude but works perfectly fine on any pre-emissions car without O2 sensor. If the car has a O2 sensor, then you need an additional LPG ECU which basically acts as a slave unit to the car's own petrol ECU. Regarding lubricating the valves, if the car is suited for lead free petrol, you have hardended valve seats and are good. Should the car nead leaded fuel (or lead replacement/additive), it is wise to have the engine overhauled and install hardened valve seats, or use a LPG valve additive.

[@alexandercamara2026]

Thank you Sir , That is some very valuable information...🙏 Sounds like you know the system well...👌

[@ErnestDziadekGruz]

In some European countries LPG is very popular. For example in Poland it's difficult to find a gas station which DON'T sell LPG. It's about half price of regular gasoline and car uses about 10% (LPG has about 10% less calories than petrol). Basically you're driving for half the price There are pretty much no drawbacks to this system. It's cleaner, cheaper etc. LPG eats through catalytic converters after long time due to higher EGT. But it requires about 150000 Kms to do visible harm to it. The only problem are direct injection engines which are costly to install LPG system (twice as expensive to install and use petrol to lubricate the injectors) Nice to see this technology expand In Japan taxis also use this system

[@plopping-wetlyacademyofmot9639]

You essentially taught me via youtube to work on motorcycles. I cant thank you enough for all the money you've saved me! I hope to see more of your videos in the future.

[@mrmaxstorey]

Im going to be putting more out. I was working on a video today but I couldn't replicate the problem to demonstrate it for the video so I just scrapped it :(

[@plopping-wetlyacademyofmot9639]

@@mrmaxstorey either way man its just good to see more content coming out. You've lived quite a life man. Most everything you put out is 🔥

[@mrmaxstorey]

@@plopping-wetlyacademyofmot9639 Branden im going to put out some more content just for you bud

[@tomtee4442]

​@@mrmaxstoreywho's kit is this?

[@Thinginator]

This was very informative, thank you. I’ve been wondering how hard it would be to convert my ‘66 Thunderbird to run on propane if gasoline is ever banned, since I love that car and would hate to lose the original engine. An electric conversion just wouldn’t be the same.

[@jimtrumble7774]

I own a 1988 Chev 3500 series. Its never seen gasoline go through it. Other then some lines being updated, and a new vaporizer this 350 motor still runs like a top. Thanks for the video, and seriously like the truck.

[@danielsacks7152]

That truck has hardened valve seats, all later motors made for unleaded gas do have. Hardened valve seats are a MUST! Old engine service manuals will tell you that. Old Engines made for leaded gas usually do not have them. Back in the late '60s my father worked for a GMC dealership. A local propane company converted all their new delivery trucks to propane. In 20k miles, the valves were junk, and the seats gone in those smallblock Chevies, GM wouldn't warranty them. A Caterpillar generator tech told me that they de-rated a Deisel generator by 50% if converted to propane. Propane benefits from higher compression to restore some power. An old gas tractor engine may have 7:1 on gas and 9:1 on propane. But still suffer a little power loss. We used to "cheat" and install propane overbore kits and pistons in our gas-powered antique tractors that were made for 75 octane gas. A 1952 Massey Harris 44 gas motor was 260 cubic inches and 6.4:1 compression. A 44 special propane was 277 ci and 9:1 with less power. Automotive engines can easily run around 10.0 cr on iron heads or 11.0 cr on aluminum heads on propane, as it is 104-112 octane. The higher compression will restore torque, and then a little hotter cam can be used to restore power. Or turbocharing or supercharging at higher boost levels than pump gas can be used. Pourpose built engines aren't needed but perform much better with it. Always install a filter in the supply line propane was called "greasy air" for a reason and can contain the same dirt and rust as gasoline.

[@dbz5808]

That's brilliant! My mom is from Belize and I have dual citizenship. We think we pay a lot for gas here in the states but it's even worse in Belize. Makes converting to lpg even more practical down there than it already would be most places in the states. Good stuff.

[@Philip-hv2kc]

In this context you need to say gasoline not gas

[@hein228]

Yea, the gasoline down here is 12.60 a gallon vs 4.80 a gallon for butane.

[@oldcroneysgarage9739]

Man I love them square bodies. I have a 76. But it has a 82 front clip

[@mrmaxstorey]

nice

[@justing1810]

Pretty cool truck

[@oldcroneysgarage9739]

@@justing1810 thanks Justin

[@eastonhalleman1092]

I have a 76 staight 76

[@Maint_is_pint]

I have a 72 k5

[@robertb7362]

Very informative video. Basically there are NO cons about using LPG whatsoever.

[@triggeredleftyvegan6004]

You should use a lock off solenoid for the petrol side with a changeover switch for a nice duel fuel setup.

[@mrmaxstorey]

Im with ya dude and I even bought one to wire up under the dash, however I never used it because the lpg fuel ring needs to be manually removed anyway each time I switch it from LPG to gasoline so I can't do the changeover without lifting the hood. So, i figured I can turn the gas knob on while im under there anyway, and its one less electronic thing to mess with.

[@triggeredleftyvegan6004]

@@mrmaxstorey How come you have to remove the ring? Here in Australia been running similar setups for years. But usuallly it’s like a hat that sits inside the air cleaner housing.

[@mrmaxstorey]

@@triggeredleftyvegan6004 this one sits between the air filter housing and the carburetor. I show it in my other video on this truck, the intake hole is way too small if running on gas and the truck runs very rich. I've thought about upgrading the system because I'd like it to be push button dual fuel, but this works well for now so I'm not pressed

[@triggeredleftyvegan6004]

@@mrmaxstorey Yes you’re correct I understand now. Very agricultural system but works, it’s great to see.

[@tellmeitsnottaken]

I'm always happy when you put a video out.

[@plopping-wetlyacademyofmot9639]

Same. Of all the channels i watch, this is in my top 5

[@silvermanicattack8190]

I want to convert my 99 Chevy Blazer to propane. Two great idea for shtf , there's a propane tank in just about every backyard

[@yavorkaloyanov4483]

I love the design of that particular model... such a beautiful model!

[@plopping-wetlyacademyofmot9639]

THE LEGEND IS BACK!

[@JoshuaFarkas]

Max, the new truck is really awesome. I use propane as a backup fuel as much as I can! I was wondering if you could take on the challenge of converting a traditional vehicle (bike, car, truck, go-cart whatever) to electric. I'd love to see a series of videos on that.

[@hankhill4254]

Joshua, propane is a clean burning, energy efficient fuel. I hope one day you will make it your primary energy source.

[@hoesandhose]

@@hankhill4254 of course there's a hank hill in the comments

[@arthurwagar6224]

I have an 84 Chevy 20 set up as a tow truck. Been running it for years on butane. Same 350 rebuilt from 3 different engines. Happy. Btw I'm in BZE. At the moment transferring butane from my 92 STANZA to a 92 190e Baby BENZ.

[@philliphall5198]

I still love propane tractors and old 72 Chevy pickup It’s still working and they run great

[@Bluelinechevy82]

Those old square bodies are everything.

[@louisaugust1815]

20% reduction in power sounds like quite a loss of power especially if going up a mountain highway. Thanks for the video there is a van for sale runs on propane. I was checking out propane powered vehicles

[@unhippy1]

Its 20% if you leave the timing set for gasoline.....reset it for LPG and your looking at about a 5% power loss......i converted and ran my own vehicles on dedicated LPG for 18 years...lol LPG is almost the easiest of the 'alternative fuels' rabbit holes to go down

[@unhippy1]

@BL Dontmatter It comes down to a cost factor....whats LPG worth where you are compared to gasoline?....where i am lpg was about 60% the cost per mile driven (propane gets slightly less MPG)......If its tuned for LPG the loss of power isn't that noticeable.....on my vehicle's the power loss was similar to the loss thats felt when the aircleaner is getting close to needing replaced

[@f4tboy99]

​@@unhippy1 I want to use liquid side of propane to a Subaru and install a return hose to the tank, what do you think of that?

[@archygrey9093]

You could probably have an adaptor that allows you to hook up bbq bottles as an emergency fuel source.

[@mrmaxstorey]

O yea I already got one, but it's for true emergencies because it would involve bending the rigid line

[@curte6062]

There might be a big pro to this pretty soon since they're trying to phase out the internal combustion engine which is going to be hard to do with all the old cars on the road but they could stop producing gasoline what would be the next option convert your truck or car to propane. I recently converted a portable generator over the propane and it was extremely easy all it was was basically a spacer between the carburetor and the intake I'm not sure how you would do this on a modern fuel injected car

[@MrToranaGuy]

Changing up your LPG system for an Impco Model L or E converter and a Impco 425 complex mixer would help with your power and economy. They are easy enough to rebuild if you can get them cheap enough second hand. New they are fairly expensive, might not be worth the cost to upgrade. Down here in Australia, we used to have a lot of LPG vehicles. Not as many these days, which seems rather silly as it's plentiful here in Australia, much cheaper than petrol, and burns cleaner. I've been running it in my car's as dual fuel setups for over 20 years now, with a basic mixer ring setup like this in my old 74 torana. Horrible mileage and lost a bit of power, but it was horrible mileage on petrol too. Then I had some 90's fuel injected Ford 6 cyl's with Impco 225 complex mixer setups. I had a Impco 425 on my v8 falcon. Much better for power & economy. Then I got a falcon 6 & fit the injected gas setup to it, wow, almost exact same power on gas & petrol, only 10% worse economy, and gas was way cheaper, 1/3rd the cost of petrol back then. Just recently fit a new 4th gen I think it is, OBD2 compliant AC Qmax Injected gas system on my 96 BMW v8, same sort of power on gas as per petrol, and it seems to be running only 5 to 7% worse economy on gas, but gas is half the price of petrol, so huge savings. We fit a 5th gen Liquid Gas Injection setup to my wife's 5.4lt v8 " BOSS 260" Falcon Xr8 almost 10 years ago now. That actually makes more power on gas, 185 RWKW on petrol and 210 RWKW on gas, for a little less than 5% worse economy on gas vs petrol. Unfortunately it's hard to get Liquid gas hardware to do the conversions in Australia atm, so I only went with the Vapour injection on the BMW. Which I ended up having to source the kit from Europe anyway, as our local suppliers were all out of v8 stuff.

[@mrmaxstorey]

cool man thanks lots of good information

[@RealDeanWinchester]

You can get some of the power and economy back by advancing the ignition timing.

[@joef.3094]

i have about 20 years experience using propane powered trucks (butane is unheard of here as a motor vehicle fuel) and i concur with everything you have said here. before even considering a switch people should check the price and availability of the fuel in your area. in most areas of the u.s.a. you are probably better off with gasoline. mrmaxstorey ... nice to see videos from you again; you are coming up on 50k subscribers ... time to get a tripod and do a bit of editing. content good, video small-time.

[@joshmunroe7129]

This didn't age well fuel is thru the roof

[@Philip-hv2kc]

It's been quite popular here in Australia for say four decades but is fading from use now due to increased cost of LPG and increased fuel efficiency of modern cars, also Australia has focused mainly on giving away LPG/LNG to Japan and China for all these decades. Availability of the gas at outlets is dwindling. I learnt that automotive LPG is 50/50 propane/butane and the domestic lpg is pure propane. LNG refers to methane and i understand that in India it's methane thats the main gas but the tanks need to be double thickness and weight for the compressed methane . A gas mixture called hythane is also available being 20/80 % hydrogen to methane blend . Not having the lead additive could cause increased pitting of the valves and seats at the contact points , but if engine wasn't prone to overheating it then was less likely ( people don't consider that exhaust valves operate red hot in an engine and can get a bit tacky if too hot ) . What lead did was to deposit lead oxide coating on everything in exhaust region from valve seats n stems to the tailpipe, the deposit acted as a lubricant. I believe that you know you got quality stelliite valves if they ain't magnetic when you be checking a removed head . When i say gas , i don't refer to gasoline/petrol . If I i say gas , then i mean gas and not a liquid fuel . It's America that has this confusion.

[@onebreathoneshot6022]

Awesome truck, I would love to see the butane motorcycle.🤙

[@willyck948]

I'm having a hard time just finding a liquid service tank for a car. I converted my garden tractor to propane, works great and the engine oil will last much longer too.

[@jameshaynes8489]

glad you made this video, showed me what I wanted to know/ see

[@kato2182]

My dads Silverado switch’s from gas to butane automatically while he’s driving it’s amazing and here in mexico gas is $3.79 a gallon and 1$ for a gallon of butane so his range of travel is 1,100miles

[@hollowdonte]

I bet if you slapped a holly sniper fuel injection system on there you could delete that knob you have to adjust and the fuel injection system would be able to tune itself to a proper mixture if it's not natively supported I know someone's made a program for it

[@MrMitokiller]

Any more info?

[@benjamincoetzer7611]

How long does a tank of propane last before re-gassing is needed?

[@8d4o0c4]

In Bulgaria it is almost impossible to find a taxi that isn't retrofitted for LPG. My buddy was there with the State Department and he had his SUV converted to run on both gasoline and LPG, it was a sweet set up.

[@mattharvey8712]

Bravo............propane has longer shelf life than gas....u can't spill on playa....works better in cold weather......and if u have generator runs on propane......works in diesels to..........cheers

[@vagnerfischborn6294]

Perfect!!!My C10 261engine brasilian with butane.

[@jimmyofthesea1883]

"Dad says butane is a bastard gas" - Bobby Hill. LOL

[@leadsled8961]

The one thing I did not know is you can run 15:1 compression ratio with that fuel.

[@unhippy1]

Depends on your head design etc.....but even a pretty old head design like most 2 valve V8's are can run 13:1 compression without any real worry of pinging if your dedicated LPG only....lol i've see a 1300cc honda vtec running 17:1 compression on LPG as a daily driver

[@shaneoconnor115]

Love your truck. I’ve got an 83 C10 and 85 K2500 diesel. I’m thinking of converting my 60 Apache 283 to propane or butane.

[@mrmaxstorey]

Very cool

[@briantruck2284]

This fuel is very popular in Mexico

[@hankhill4254]

Well, propane is for everyone.

[@ILikeCatsMoreThanILikeYou]

Propane never goes bad. If the grid ever goes down eventually all the gasoline will become inert.

[@chadliggett286]

Brother Awesome video you should open the exhaust with headers no cats and I bet you get even better gas mileage! I heard you don't lose any power but gain hp. Best Regards and Keep Safe!

[@mrmaxstorey]

Thanks man I put straight pipes and advanced the timing, definitely not fast still lol but pretty fun

[@CORRIGEEN71]

Brilliant videos great detail

[@allan22873]

Can you do a video on how did you intall that lpg kit on that truck pls.

[@makingconnections777]

Cool, I think you technically have a hybrid there

[@michaelmorris6575]

Great video! Thanks for sharing.

[@MobileMood]

Ages since I was at you channel

[@guitarholio]

Thanks for sharing. 👍

[@terryterry7715]

Nice retro LPG system review! How much max pressure in the LPG cylinder tank had these systems back in the day?

[@mrmaxstorey]

Couldnt tell you, mine is measured in gallons not psi

[@225supersix1977]

I have a '67 Ford F350 wrecker/ tow truck, with an FE360 engine and a 2bbl carburetor (Autoline 2100).... when I work I use it with LP propane and the gasoline is only used to start the engine, the problem is that when I tow heavy loads and on steep slopes, coolant temp rises above 200°F, stays between 200 and 205, fluctuates in that zone, in the red zone, sometimes it gets to 210°F, and when that happens, the oil starts to lose pressure, from 40psi , it drops to 30 some times it drops to 25, and the sound of the Lifters starts (normally the pressure fluctuates between 40psi and 45psi), I am currently using Valvoline VR1 20W50, because it is high in zddp.

[@mrmaxstorey]

Interesting, the LPG is supposed to burn cooler than gas. I wonder if you need a new thermostat, water pump or a rad flush

[@johnbrizendine7716]

​@@mrmaxstorey Another thing to consider is that if you run the propane/butane richer, it burns hotter. There isn't really much benefit to running it rich, so may want to take a look at your EGT and do a smog test to see if it may be burning too rich. Also, you can g5rtet a separate oil cooler, my 96F250 Super Duty has an individual oil and individual transmission cooler, so even if the engine starts running a bit hot, the oil will help cool it, and the oil will remain a bit cooler as it goes into the engine internals.

[@Assadullah23]

Dear lpg in different countries your country LPG is very best performer and otherwise is a gasoline connection was anything hard engine heating problem Aandhi LPG in Pakistan I have not recommended LPG but I am light just natural gas and gasoline and petrol

[@PadmaDorjee]

Great video.

[@jonahgabaldon6412]

I would like to do this to my tbi full size 90 blazer with a 350 got any pointers?

[@mrmaxstorey]

You can do it!

[@urbanwarchief]

hank hill would be happy

[@clintonsmith9931]

My father had 63 Chevy with 292. Could switch going down road. Hell on carbs tho. Floats in carb would beat holes in them. And they stink inside and out.

[@champion20199]

Very cool

[@louidog56]

Great setup. I’m very interested in doing this myself-did you fabricate the fuel ring? And what is the model of the regulator? Great video man thanks for sharing this

[@mrmaxstorey]

Down here these come in kits based on number of cylinders, and require very little modification to install. I'm not aware that there is any brand name on them

[@louidog56]

@@mrmaxstorey thanks for the info! Where did you get the kit?

[@mrmaxstorey]

@@louidog56 it came with the truck

[@ur_quainmaster7901]

Could you point me to an example of the propane fuel injector systems you referenced?

[@bcubed72]

Butane would suck up here, 3 months out of the year. At cold temperatures, it really isn't a gas, even at atmospheric pressures. I know there's camping stoves that sell a propane/butane mix that works even at low temps.

[@20126193]

Where can i Get a kit for my square body?

[@kevinrichards3288]

Thaz a big ass front bumper on that car.

[@treyfinley3547]

I have a 1994 ford f450 10 lug flatbed with 460 big block lpg/ propane only

[@mrmaxstorey]

nice

[@dirtysalmonchaser]

where are you located?

[@mrmaxstorey]

Belize

[@hoesandhose]

FindHimMike

[@EKKoSYKESMusic]

Would it work on an 88 f150 EFI? Also how much does it cost to convert ?

[@jamesofallthings3684]

The biggest pro from my perspective is that propane can be stored for a very long time. So if you're at all concerned with potential supply issues, price hikes, or other world events it offers peace of mind.

[@mrmaxstorey]

nice

[@tankcrazy8513]

Man got a propane truck and fuel stations everywhere but previous disconnected the wiring no clue how to put it back... been looking for a mechanic in socal

[@davidgoodwin658]

I have to wonder if you could use a nitrous oxide plate between the the carburetor and intake manifold. Shut off gas to carburetor through electric fuel pump and then turn on the propane gas?

[@mrmaxstorey]

You could give it a go, but it might be more complicated than that. The video shows how the fuel ring is designed to significantly restrict air flow while in butane mode, that's why I have to remove it when switching to gas. So you might need a workaround for that but it sounds like a fun project

[@richardlike4744]

Thank you

[@felixaudet5860]

Can you put a propane carb on a car that's fuel-injected, if you can find an aftermarket manifold that's intended for a carburetor / single-point injection? I think most car comes with single point injection till the end of the 80ies ..

[@mrmaxstorey]

Yes you can do that, even easier if it is single point inj

[@shitboxoffroad]

So essentially propane and butane are interchangeable?

[@mrmaxstorey]

The system is similar, i think you will need a different regulator and maybe a fuel ring to switch from propane to butane, but yes both can power a vehicle

[@jkbrown5496]

Initial boiling point of propane is -44F while butane is 31F. Vapor pressure at 60 is 102 psi for propane but only 12 psi for butane. Propane systems have to be able to handle the higher pressures and butane isn't going to work in cold climes

[@robs_garage0278]

I was thinking about propane convert my 1980 chevy elcamino it's got a 350 not really good on gas

[@shitboxoffroad]

Im coming up onto a large amount of butane, thinking of converting my chevy 1500 to butane, any additional information or literature you can provide would be amazing.

[@mrmaxstorey]

There really isnt that much to it honestly. Youll want to firmly mount the tank in the bed and cover it to protect against corrosion. The hard line is a high pressure line, it leads from the tank to the regulator, and then after the regulator is a low pressure line and this should be flexible, to absorb any vibration from the motor. I'm sure they sell kits somewhere for your throttle body and displacement, my truck came with this kit so i didnt need to source it. Beyond that the truck just drives normally, maybe a little low on power but not too bad

[@DUDENOHELP]

Any risk when in a crash? I know similar bad results would happen if a gasoline tank was punctured and leakes around hot items, but is it easier to ignite if propane tank was punctured and leaking propane out?

[@mrmaxstorey]

This tank is old technology and probably not too safe in a crash, I comforted myself by saying that it was in the bed of the truck so probably a little safer but in the end it would make a pretty good boom. Modern tanks are a lot safer and are generally fine to be in the cabin of a car

[@irishmakely1306]

What wld happen if you didn’t run the gas out of the carb 1st & just sent it running both possibly for a moment? Your where on the blk marble? How are you able to tell your truly running rich or lean w/o pulling plugs? Oh I’d think just letting the oem fuel pump running to a shutoff valve it cld blow the seal & pump gas into your oil pan hmmm

[@mrmaxstorey]

OK well to answer your questions one by one, if I didnt empty the bowl of the carb it would just run shitty for a few moments, no power and lots of smoke until the bowl emptied, and then it would run normally. Don't need to pull the plugs to see it was running rich during that brief time. And no the shutoff valve does not cause the diaphragm in the oem fuel pump to blow, it is just a low pressure carb fuel pump it only makes like 6psi. This pump is low pressure high volume

[@rskinner2127]

WHERE DID YOU PICK UP THAT KIT? THERES A LOT OF ROOM UNDER THE HOOD IS IT POSSIBLE TO MOUNT TANKS THERE OR IS THERE TOO MUCH HEAT IN THE ENGINE COMPARTMENT?

[@mrmaxstorey]

The kit was already installed when I purchased the truck, it is a common modification down there. The engine bay is spacious but not nearly big enough for that tank, even a couple 5 gallon tanks would be a tight squeeze and wouldnt give nearly enough fuel range.

[@elkevin5888]

Hey man I have a 2001vt600 shadow , that has 160psi compression in 4 cyl , carb is rebuilt and everything working but bike won’t fire even with starting fluid , the spark seems to be very weak , I’ve cleaned connections and battery is sitting arround 12.8 volts , do you think it’s the stator ?

[@mrmaxstorey]

Good work so far. I'd throw in new plugs, look up the stock resistance for your coil and pickup coil and then check those. Usually cdi boxes fail by arresting spark altogether but occasionally they do get weak over time so it could be that as well

[@elkevin5888]

@@mrmaxstorey Ok will test for resistance , when i first found the bike in a barn , carbs were clogged tank was rusted, all that was adressed , spark plugs are wet , and even with starting fluid , i bought new plugs but they seem very dim , compression is fine , there is gas in the cylinders and wont start , so my guess is spark plug is to weak to fire ? does that make any sense?

[@mrmaxstorey]

@@elkevin5888 yes it makes sense, any part of the ignition system can get weak and cause poor spark, I'd just be methodical and test everything and don't assume any part is good until confirmed

[@elkevin5888]

@@mrmaxstorey so battery was reading 11.6v decided to charge it overnight , hooked it up , sprayed some starter fluid and boom it was alive , one thing I noticed when I pulled out the carb to clean it is that the air mixture screw is missing , but the needle inside of it it’s still in there , I got no idea how that works , maybe it fell ? And the needle stayed in there ? , would it run like that ? The spark issue was battery related , but I got no idea what to do with that air mixture screw , just leave it in there and re assemble everything ,

[@mrmaxstorey]

@@elkevin5888 Do you mean the choke or the air mixture screw? The air mixture screw should be a brass screw that comes up from the bottom of the carb, it is a needle with a screw head on it. The choke screw is made of plastic, it has a cable coming through it, and it attaches on the top of the carb to a separate needle. I see how that could get disconnected from the cable and stuck in the carb but its unlikely that you would break the mixture screw in two. Go on bikebandit and look up your bike's schematic for the carburetor and tell me what youre referring to

[@LemmeSmasher]

With the butane having a constant flow how well does it handle speed changes? Not sure on the road system I'm belize but can you go from city driving to freeway speeds (65mph) with the same gas flow?

[@mrmaxstorey]

That's a great question. The truck drives normally at all speeds, albeit with about a 20% reduction in power, no stumbling or hesitation. I believe it is because the fuel comes out already atomized with air in a relatively consistent mixture and does not rely on a carburetor to mix it. For that reason it is less beholden to the rules which constrain a carburetor

[@LemmeSmasher]

@@mrmaxstorey one last non truck related question. Were you allowed to bring your houseplant into Belize? I remember your video about moving to Cali and they mutilated it.

[@mrmaxstorey]

@@LemmeSmasher Ha youre a prince. Nah we didn't even try, my brother drove from Colorado to pick it up and it sits now next to his

[@luckyPiston]

Lemme ... The gas flow is controlled by the regulator and intake manifold vacuum , more throttle = lower mani vac and more propane from the reg, less throttle = vice versa, the valve he is playing with is for fine tuning.

[@no-damn-alias]

The reason is slightly different. As propane is feed in as a gas it displaces some of the intake air so on a N/A engine you have less oxygen that can be sucked into the engine. That's why you loose power. If you'd feed it in as a liquid like you do with gasoline you wouldn't loose power. You even gain some power as you cool the intake air with the evaporation process and thereby make it more dense

[@RustyCarnahan]

So how would a propane only carburetor change a setup like this?

[@mrmaxstorey]

Well you would need some butterfly valves so you can throttle the motor, and it would need to mount securely to the intake with no leaks. Other than that the carburetor doesn't serve any other purpose

[@andresruiz3313]

Hi i love your work ,I have couple questions please answer if you have time

[@mrmaxstorey]

what's up

[@andresruiz3313]

E 250 ford using propane, can adapter a propane that we use for bbq or is different type of propane

[@mrmaxstorey]

@@andresruiz3313 its the same type of propane, but id just get the kit for this vehicle if you can

[@DaveC2729]

Where can I get one of those systems? Will it work for propane too? Gas is too damn expensive to run my truck right now. It's also a Chevy, same era as that truck. Mine's got the 454 big block.

[@228supercow]

Were on the same page. I have a 454 c30

[@DaveC2729]

​@@228supercow Yeah, mine's a c30 too. Cheyenne trim, special edition, camper special, "Big Dooley" version. Full 4-door crew cab.

[@master6435]

Would be nice if someone made a pump that can be connected to the natural gas pipe in house so someone can just pump at home

[@soyreddevil1603]

How far can you Drive with a full tank of butane and how much is the butane tank capacity?

[@mrmaxstorey]

I get maybe 10mpg with a 30 gal tank

[@captainvanaroo1729]

What impco gas regulator is on that truck and are the heater coolant hoses hooked up to it.?

[@mrmaxstorey]

The heater hoses do not hook up to it, don't know the model of the regulator

[@miguelzorro7631]

I have a question, inside the cabin smells gas? Or something, I have a 302 Ford engine and inside the cabin smells really bad, but is running in gasoline, I want to know if this system fix the smell issue

[@mrmaxstorey]

No but sometimes the tailpipe smelled like a BBQ. I don't think it would solve your issue tho, you might have a header or exhaust leak you need to patch up, or a fuel line leak

[@guy8475]

What is that adapter you pulled off the carb? I can't find anything like it online. All the kits I'm seeing want you to replace the entire carb with a propane only

[@mrmaxstorey]

That part is often called the fuel ring

[@guy8475]

I can't find any like that online. All the kits I'm seeing require a new carb. If anyone knows the details on this set up using your gasoline carb let me know.

[@guy8475]

It looks like a modified mixer placed directly on top of the factory carb.

[@cocinandoconganas9695]

Hi where i can buy the kit for dual carburetor

[@WandersOfficial]

where did u get the kit

[@hankhill3344]

This is one of the uses of propane I've experienced for myself. Maybe I'll stop having dreams about grilling naked with my neighbors wife.

[@fallingsuncreations9270]

Ok so im looking at a 88 dodge propane powered truck, are they any good? Last longer than gas? Hard to fix? Parts harder to find? Please help

[@mrmaxstorey]

Well all the parts are basically the same except for the additional LPG hardware, so as far as that goes its no different than a gas powered truck. The LPG burns cleaner and has a higher octane than gas so yeah I think its a good thing, and if your truck is like mine you can switch it back and forth from gas and really get a mighty range for road tripping

[@fallingsuncreations9270]

@@mrmaxstorey dang that’s nice, I might get it, it’s cheap but I think it’s all propane

[@TheShmeebitdog]

Can you run the propane at the same time as the gasoline?

[@no-damn-alias]

No. You have to pick but propane is half price. Why would you run on gasoline? Only direct injection engines with an evaporator system use about 5-10% gasoline to cool the injectors

[@estelacastillo1491]

would it work on a mitsubishi mighty max 88 or it will loose power with butane gas?

[@mrmaxstorey]

it will lose a little power but the fuel savings should make up for it

[@estelacastillo1491]

@@mrmaxstorey ok thanks.

[@shelbyadams524]

When I was a kid all farm trucks were butane

[@OssamabinKenny]

Was that gasoline gauge faulty?

[@mrmaxstorey]

Yeah bad ground

[@Volkyno]

Can an LPG converted car run on biogas and hydrogen? 🤔

[@mrmaxstorey]

Idk, anything can be anything if you try hard enough

[@88mmgamertank40]

Do you think this will work with hydrogen?

[@mrmaxstorey]

Hydrogen is an entirely different thing. The fuel isn't burned in internal combustion, it is turned into electricity and it powers electric motors

[@brandongonzalez1052]

Does it get better fuel mileage than gas

[@mrmaxstorey]

no its a little less

[@larrystead7208]

Can you run it off methane instead of propane?

[@mrmaxstorey]

Im sure someone could figure that out

[@jarrodheley7879]

You're thinking of CNG. It's generally considered not as good due to the much stronger/heavier tank requirement, as well as more loss of power and low range. Cheap to run though.

[@juliogonzo2718]

Where do you buy the invisible ignition key lol?

[@mrmaxstorey]

At the invisible ignition key store obviously

[@juliogonzo2718]

@@mrmaxstorey I loved two of my old pos gms that you could pull the key out when it was running, and lock the door to run in to somewhere

[@kennethhudson8013]

What is you mileage per tank?

[@mrmaxstorey]

About 300 miles

[@bradh6185]

Is natural gas just as good?

[@mrmaxstorey]

Just as good as what?

[@davirae3779]

Where can I get the kit?

[@oscarpallaresmedia21]

Gotpropane. Com