6.5L turbo diesel fuel economy (answering your questions #2)

[@odelldickey1170]

Thanks for the 6.5 diesel videos.

[@JessePelkey1]

Absolutely Odell, if there is anything you'd like me to make a video on just let me know and I'll do my best 👍 I'll keep them coming

[@terrywhite4512]

I have a 6.5 diesel in my 58 Chevy Delray, linked to a 700R4 gearbox and I’m getting plus 30 miles to the gallon! We tow a 26 ft caravan to shows and get around 22 miles per gallon. Great engine , very simple and reliable 👍👍

[@VeggiePower303]

You are not measuring something correctly. There is no way you are getting 30 or 22 with that rig. I have owned over 20 of 6.5 Turbos in Suburbans and trucks. I have never gotten more then 14 MPG on a Suburban. And 12 in crew cab pickup.

[@aaronvinegar8963]

@@VeggiePower303 different gearing

[@VeggiePower303]

@@aaronvinegar8963 What's your differential ratio?

[@VeggiePower303]

@@aaronvinegar8963 Oh, that is a car with 3600 lbs. I believe that.

[@FixitBongbong]

I stumbled across your channel and I gotta say yours has been one of the more informative 6.5 channels I've seen. Appreciate the info, keep em coming! I sub'd.. Also about to start a 6.5 project myself might have some questions in the future. Take care and happy holidays!

[@JessePelkey1]

Thanks man, I appreciate that, I try to be the most informative person I can in my videos so you saying that means alot. Thank you for subscribing and the interest in the videos I make. Plenty more to come, I plan on doing videos on 6.2 6.9 and 7.3 idi's as well in the future. Feel free anytime to get ahold of me with any and all questions man, I'm happy to help. Safe and happy holidays to you and your loved ones👍

[@taylorh3930]

GM was smart they went with times and got rid of them god awful solid front axle. IFS front suspension for life for me.

[@JessePelkey1]

I dont blame ya, I love my ifs trucks they ride 10 times better. I do think the solid axle does serve a good purpose in other applications though.👍

[@2eyedjack433]

Hello, just found your channel and subbed. My dad has a 96 with the 6.5. Its just sitting for almost a year. The injection pump is going bad. I got another lined up so all this info will hopefully help with his fuel milage. Were the 3rd owners now. The original owner used to tow. 5th wheel. Then he passed away and the truck went to the grandson, who sold it to pay on his mortgage. He was pretty sad to see it leave.

[@JessePelkey1]

Thank you for subscribing man, I do greatly appreciate it 👍 I hope my videos are able to help in any shape or form. If there is ever a video you'd like me to make for ya just let me know. I hope your able to get the ol girl running again soon man.

[@Omegadoomship]

I have a 1999 Chevy K2500 with a 6.5 Detroit diesel with an automatic and the base engine is stock. I get around 20 MPG highway. I’ve done the normal things to improve reliability like relocate the PMD and put a heatsink on it, upgraded the oil cooler lines and the weak lift pump. I don’t know what rear gear I have but I am hovering at 2,600 rpm at 70 MPH. And I honestly feel like it should’ve had another overdrive gear to lower the rpm’s and increase mpg. I thought about installing a gear venders overdrive so I could get even better fuel economy but the cost of the gearbox would outweigh the cost of fuel savings.

[@mortarman231]

Wow! My doing 14 mpg.. but i know that my lift pump is dead, ordered a new one

[@hummerguy]

The 6l80e or 6l90e maybe a better option than gear vendors, I sit at about the same RPM as you with my 4l80e. The 4l80e has a overdrive of .75, the 6l90e has a .67 ratio. My RPMs would be around 2000RPMs at 70 with the 6l90e

[@benpyle2568]

On my “almost” stock k3500 crew cab with a 9’X8’ stake side bed, pulling a boat about 130 miles, on a full tank of fuel (around 270 miles on a full tank) I averaged 19.7 overall! Driving with since!!!! Lol

[@zachfowler1410]

Very informative, thanks foe the video!

[@JessePelkey1]

Thank you, I try to make these videos as informative as possible to really help you guys with your own projects. Thank you for the feedback.

[@manbuilds1587]

When I was driving a 6.5l it got over 25mpg on highway stock. Just pit diesel in it from factory & it would get that easy.

[@samuelclemons6821]

My pretty much box stock '95 K1500 Suburban gets 20mpg at 65ish on a regular basis running 245/75R17 street tires on alloy wheels.

[@JessePelkey1]

That's awesome man! How do you like the suburban? if you dont mind me asking. I've gone back and forth about wanting one eventually but honestly cant make up my mind

[@Cripples23]

@@JessePelkey1 you need a 6.5 2500 suburban in your life

[@JessePelkey1]

@@Cripples23 would love to build an off road camping rig out of one, some day

[@figgeberglund4145]

Thanks for a nice and informative video. 🇸🇪

[@JessePelkey1]

Thank you for watching them man, I appreciate it

[@seove1]

Great vid!

[@JessePelkey1]

I appreciate it man, thank you

[@colbysmith3893]

The reason they say not to change the tran fluid because it will so say make the transmission go out but what it really is is if its not charged regular then when u change it the grit in the fluid is the only thing holding the clutches together so yes change fluid nothing is forever

[@Tylers24]

Yeah it’s better to change, if it’s that bad use trans slip with new fluid to add some grit

[@vwbeetle1954]

I got a 6inch lift 3” body RCSB dually, 4l80e, 4:10 Detroit locker 35s, quadstar 8 set running hx35 hood stack and literally everything is new and I only get 12mpg in freeway. Truck only weight 5,800

[@JessePelkey1]

By everything being new, does that have any regards to the fuel system? A few things to keep in mind, even though your truck only weighs 5,800lbs, being a dually, 35" on top of that, your rolling resistance or footprint on the road is a significant factor to consider. As well as drag, the lift kit is comparable to mine yes, however you also increased the amount of wind drag on your truck by installing the 3" body lift. I'm going to assume here that you also have a dually bed with the flairs to cover the tires, making the truck even less aerodynamic. TDC offset, if that is not were it needs to be as desired you will loose fuel economy, RPM and speed play a factor. There are a lot of things to consider regarding fuel efficiency.

[@JohnJohn-bc4nh]

I've heard laying your tailgate down on the highway will increase a few miles a gallon

[@dexterwaithe3688]

Great video

[@curtisrandolph549]

I can only get 10mpg out of my 6.5 in a 98 Chevy K3500 dually. Empty if I'm really light on the pedal, I can get it up to 11.

[@JessePelkey1]

Check your vssb you should be getting better milage than that

[@zinhols]

Hello, what modification did you make optical bump of the injection diesel 6.5 that you omit in the video? I'm from Brazil and I have a k1500 94/95

[@Mr8up1]

Yea I would like to know that to.

[@JessePelkey1]

I'll be making that video shortly for yall 👍

[@mnsnowmobiler1284]

What year is your 6.5 right not and how much did you pay for it.

[@JessePelkey1]

Shes a 1997 and back when she was a bone stock dually I paid 3k for her 👍

[@wespasch4551]

I have a 99 GMC 6.5can you show me a diagram of the timing chain alignment dot or the diagram of the keys for the alignment dots please

[@of-Israel]

so my exhaust is stock cross overs and down pipe to 3 in straight pipe dumped before the axle I have the 94 k2500 no fuel mods besides a duralift fuel pump that does nearly twice the OEM.... now how much would you say I could possibly gain from a cold air intake

[@JessePelkey1]

Very little as far as performance noticably but overall better for the engines health

[@damonens9478]

I wish u could change my transmission for me haba. My reverse went and I gotta go to lethbridge, Canada to get a different one 😒

[@JessePelkey1]

Would definitely do it for ya if you were close👍

[@jacobchandler2083]

Im an obs ford guy i can agree a 90s model chevy rides much nicer. Ive only had a good comparison of the half tons but i think the gms ride a bit too soft

[@JessePelkey1]

The 3/4 and 1ton trucks do ride a quite a bit stiffer but for the half ton trucks you could always turn up the keys a little bit to get a little more firm ride out of it. I'm primarily a gm fan but I really like ford's as well. I plan on making 7.3idi and 6.9idi videos in the future.

[@jacobchandler2083]

@@JessePelkey1 i want a 7.3 idi truck i also have a host of mods in mind

[@jacobchandler2083]

@@JessePelkey1 like superduty front springs and a 110 cc pump and maybe an hx40

[@JessePelkey1]

@@jacobchandler2083 there are a bunch of guys over on our Instagram page that have built some pretty kick ass rigs! Definitely gets me excited to build one at some point haha

[@jacobchandler2083]

@@JessePelkey1 i really want to drive an as comparable as they can be 6.5 vs a 7.3 or 6.9

[@markmeister2444]

Wow I have a 95 GMC with a 6.5 NA which means shesa don'ta hava turbo I'm sure you know and when I brought it home from Wisconsin 10 yrs. ago it only managed about 19 mpg and this is only a 2 wheel drive half ton. I stuck it in the garage when I got home and that's where she's sat for the last 10 years (don't ask) . I'm gonna put a non EGR manifold on it with some kind of a better air cleaner if that possible it had a factory car type aircleaner I might even take the air pump off. I think I remember back when I was working on it I noticed the crossover pipe was a tad flat on the bottom the truck sits pretty low in the front it use to be a Virginia state truck so I would imagine they ran over anything that got in their way I might change that probably wouldn't be worth the expense to do anymore to the exhaust. I'm doing the Feed the Beast to it probably don't need it but its getting done anyway since I have all the parts already.

[@taylorh3930]

If anyone watching this video is from Saskatchewan I'm looking for a 97-98 1500 Z71 6.5 diesel as a parts truck to swap into my 98 Z71 gasser. Truck must be automatic must have the pushbutton 4x4 drivetrain must run and operate properly. I could care less about how rusted or dented the body is I'm just looking for a donor truck. It can also be a 97-00 2500 aslong as it's got the pushbutton 4x4 transfer case. Message me if you got.

[@gregsmith6394]

Thank you...

[@stephenmccarthy3553]

great video. thanks

[@JessePelkey1]

Thank you!

[@jamesgooden4926]

I know people don't like the Detroit but the Detroit was the best diesel

[@JessePelkey1]

Everyone's got their opinions brother, like you I personally like them quite a bit, some people would rather throw them in the trash. The way I see it everyone has their own preferences.

[@JamesBrown-r8v]

Bud can you show or tell me what the ground hook up to from starter area and another one on passenger side frame. I just see broken ground wires don't no where they start or end.96 chev c3500 6.5 turbo diesel stock. Thanks watch videos all the time first to comment up here in ontario canada. Would like to replace all ground wires I can off my back not lucky enough to have shop or honest ant help you can send my way appreciated. Have other questions but one at a time love my old truck trying to keep her going.

[@shanegeorge7344]

What lift kit do have on your 6.5 I have 1994 6.5 GMC I want lift it what can put on it

[@JessePelkey1]

The lift kit is a rough country 6-in lift kit and when you go to purchase it it will say that it doesn't fit for the 65 engine but it definitely does I made a video about this it was one of my first videos if you're interested in watching that I kind of go through some of the things you may run into when doing so

[@deltafarming118]

Makes me wanna throw away my 454 big block out of my 99 k2500 for a 6.5

[@JessePelkey1]

Thatd be pretty sweet!

[@jonathanmathews8496]

I'm actually really interested in that wiper cowl. What style is it?

[@JessePelkey1]

Lund 👍

[@Dannyboy-nj4wh]

Need help got new injectors and the 6.5 in my 92 wont start

[@JessePelkey1]

Sure thing man, was it starting before the injectors were changed? And have you fully bled the fuel system?

[@noahvarty2713]

I have a 1998 k1500 6.5 with 6'' lift and 35s and i get about 7mpg, it is also missing the mass air flow sensor which I believe may be the problem can anyone confirm this?

[@JessePelkey1]

Definitely will contribute to the poor fuel milage. There can also be other contributing factors but missing the mass air flow sensor certainly does not help with the mpg's.

[@kuoz4072]

I have a question, when I turn the key my WTS glow plug light doesn't come on ?Do you know what's wrong?

[@JessePelkey1]

First I would check to make sure the bulb is good behind the gauge cluster, then make sure all of my battery cables are tight on both ends (batteries, engine block and frame) then I would see if I hear the glow plug solenoid is actually cycling. If you dont hear it cycling then solenoid could very well be bad.

[@joestone2068]

First of all I love your videos great job. I have a 1996 6.5 I have had it about 11 years and I have always used Rotella diesel oil conventional should I switch to Rotella synthetic diesel oil?

[@roberttemple9474]

I have a 1994 Chevy 3500hd with a 6.5 turbo diesel. What can I expect for fuel mileage? Oh, also it has a Dana 80 rear end. It has the nv4500 trans and it’s 2 wheel drive.

[@JessePelkey1]

What gears are you running in the rear? Also tire size?

[@VeggiePower303]

I would put a 3.33 differential in there and if I needed lower gear I would put it in Low-4. There is no way you are getting 22 MPG on that with a 4.10. I have owned about 20 6.5s, I never got more then 14 MPG even on a Suburban.

[@JessePelkey1]

That's what I'm getting man, proper tune, maintenance, and other aftermarket parts. 22 when driving conservatively, around 17 normal driving

[@DrRust]

I get 17 mpg in my 6.2 suburban in town on 4:10 gears

[@VeggiePower303]

@@DrRust That sounds about right with a NONE Turbo 6.2. Once I had a 40 foot Gillig Phantom City-bus with a Detroit 6V-92 Turbo in it. I have had put a 3:33 Diff in the rear end. I was getting 8.5 MPG, running on 100% veggie oil and pulling a Suburban. And my top speed went from 55 to 85 Mph You can see the bus on my channel.

[@jamesgooden4926]

True

[@polyarkos]

Hey Jesse, is this MPG just highway driving? I'd love to hear what your MPG is around town. Thanks.

[@JohnJohn-bc4nh]

he said 15 mpg in town

[@prettymuchanexpert7152]

What kinda fender flares are those

[@JessePelkey1]

Bush wacker 2 inch pocket style fender flares

[@prettymuchanexpert7152]

@@JessePelkey1 good lord those are expensive

[@JessePelkey1]

@@prettymuchanexpert7152 ebay will be your best friend on buying the best deal for them