How oil filter anti drain back valve works? Anti drain back valve has 2 jobs to do.

[@repairvehicle]

Premium oil filter will cause this to happen kzbin.info/www/bejne/aaq1YYKAlq11n7c Every truck needs this kzbin.info/www/bejne/nnPFq32jeK2nedE Every cummins owner should know this kzbin.info/www/bejne/jXOyc613apudrNk Every vehicle needs this, does not matter if it's truck, car or EV kzbin.info/www/bejne/fpDFhHeno7ibb5I

[@ew1usnr]

"The oil is coming from the center hole" 5:30 When the oil filter is standing vertically, the oil stopped by the drain-back valve flows through the filter paper to the center drain. It never occurred to me that it would do this. But now that you have shown it to me, it makes sense. Thanks.

[@nathanielcasas8923]

I know some vw for the 2.0 liter engines use a design similar to the fram filter in the video

[@ScurvySquirrel]

The metal threaded piece on the large Fram Oil Filter is an Adapter for older V8 Engines such as the 5.0 V8 302 that comes in 1991 Ford F150 and Mustangs with the same engine. Usually that adapter is already attached to the engine and u just get the Oil Filter but the adapters are replaceable and u can get them by themselves or with filters such as the Fram Filter u are showing.

[@repairvehicle]

Thank you

[@teh60]

Subaru's FB engine has the filter on top. The oil light stays on for about 1 second after starting with new oil and filter. Every start after that the oil light goes out instantly. I think once the filter element is saturated with oil it makes a difference for the next start up. Great video.

[@abaracrackin]

Very informative video! Thank you very much. I'm wondering why your oil stopped draining during the experiment process. Did the tip of the union bolt sticking into the filter and the oil surface remaining in the filter have the same height? The oil drain through the union bolt. When the oil level drops below the tip of the union bolt, the oil will stop draining.

[@repairvehicle]

Less oil meaning less gravitational force forcing oil down. Also, small amounts of vacuum prevents all the oil from escaping because everything inside oil filter is covered in oil. 3 days later or so all the oil have drained.

[@repairvehicle]

Here is interesting video, cummins no oil, should it be full? kzbin.info/www/bejne/oGLQeYxmab6bjKs

[@abaracrackin]

@@repairvehicle Glad to know that! I'm curious to see what the results would be with hot oil, but I thought it may be possible that a car which is driven daily could hold oil through a night.

[@abaracrackin]

@@repairvehicle Thank you, I'll watch it!

[@repairvehicle]

That video show that oil filter is up and vacuum pulls oil out of the filter leaving filter almost empty

[@oompaloompa7430]

Could you do a video testing Hubb Lifetime Oil filters? I just bought one for my 2007 Chevy Silverado 2500 HD 6.0 because the original oil filter on it, AC Delco was said to not be good for it. Started having oil pressure problems, replaced the oil pressure sending unit, (no filter underneath on the 6.0), still had problems. Finally isolated what I think the problem is: oil pickup tube O ring needs replaced. But after doing so much research on oil filters and bypass valve psi settings I realized that I think that the majority of the contaminants that SHOULD be getting caught in oil filters with low psi bypass valve settings is actually just getting pushed through the engine past the filter because the bypass valve on some oil filters open prematurely. Thats why 2007 Chevy Silverado 2500 owners of the 5.3 and 6.0 liter engines are having problems with their oil pressure sending unit filters getting clogged and having to tear apart their oil pumps, because the small freakin filters they are using aren't trapping the contaminants because the bypass valve psi settings on the smaller filters is set too low so the oil pressure from the vehicle running at idle is enough to activate the bypass valves, which totally defeats the purpose of the filter in the first place. After much thought I decided to go with a KN HP1017 with a higher bypass valve PSI setting so I know more of the contaminants are getting caught in the filter media. But then after thinking about it more I realized that even the best of the synthetic filters get clogged over time. Its what they are supposed to do, but as you continue to drive with a filter that is getting clogged with contaminants it actually increases the psi required to pass good oil thru the filter media which could be another reason why the bypass valve would open prematurely. So I went ahead and decided to try a Hubb lifetime filter. Was about $100 but I think it will be well worth it in the long run. First of all, the filter media is designed for flow. Its also got two filter elements inside, which means that its impossible for sludge to get past the bypass valve and back into your motor. I thought that was a pretty neat feature. Thank you for sharing your videos. I watched your video on why engines consume oil. Made lots of sense. The logic you presented on the subject is flawless. Oil burns, but it burns worse if its cheap oil because cheap oil evaporates faster. Also, the fact you're an AMSOIL guy, I think you've gotta be trustworthy. lol.

[@repairvehicle]

What was the mileage on the truck when you bought it? How often were you changing oil? What brand of oil were you using? Conventional oil? I will definitely add to my list Hubb to review

[@oompaloompa7430]

@@repairvehicle I bought the truck from my dad who has always been very meticulous with his oil changes, always changed the oil every 3000 miles, always kept up on the maintenance of all his vehicles. I think he always used the regular 5w30 oil thats recommended for it. Two oil changes ago I went ahead and ran some seafoam thru the engine (without revving the engine) to help loosen up the oil and help break down sludge and when I drained the oil I noticed some pretty decent sized chunks of sludge in the pan. Not sure where the sludge was from but I was a little surprised by it since engine sludge doesnt typically form on the bottom of the pan. Sludge forms because oil gets burnt to the point where it turns into a paste, and its almost impossible for oil to burn in the pan because thats where the oil is at its coolest. So wherever the sludge was accumulating, I think the seafoam really helped to dislodge it and help it work its way back to the pan. After the seafoam and drain and new filter install (KN HP1017) I put a synthetic 10w30 oil in and added some LucasOil stabilizer and then took the truck out for a test drive to see what the oil pressure looked like. The pressure reading was significantly better which is what I wanted but the truck really doesnt like the 10w30 weight oil. Truck runs fine on it, but I think the higher weight oil actually slows down the performance because it feels like you're having to push the pedal just a bit harder than normal to get the same output as before. But I went ahead and ran it for 3000 miles on the 10w30 and it got better with time. Seemed like it drove better as the oil broke in. Right about the 2500 mile mark it was driving like brand new 5w30 oil. By the way, I have to mention that in order to get the truck to the right oil pressure before I started driving on the road I would start the truck, let it run for 10 mins or so (starting psi would be around 20 psi) and then turn off the truck, wait ten seconds and then restart the truck and then the psi would jump all the way up to 37 and settle down to 35 at idle, which is normal. So every time I started the truck thats what I did to make sure I was running the truck with enough oil pressure psi. I think there must have been something stuck in the oil pump pressure relief valve to have caused the psi to get stuck at the initial level and then need to be restarted to get it to jump to the correct psi. On this latest oil change I went ahead and dumped some synthetic Castrol 5w30 in it and added the usual Lucasoil stabilizer and I went ahead and installed the lifetime Hubb oil filter on it. Ever since I installed the HUBB filter...all the oil pressure problems are GONZO. Oil pressure jumps right to 40 on startup every time and settles at 35 (which is perfectly normal). And Ive noticed there's absolutely no delay in power now when I press on the pedal. Instant power and better acceleration. I have noticed the gas mileage doesnt seem as good. Its not terrible but it could be better. Overall Im happy. Looking forward to cleaning out the Hubb filter and checking out what it might have caught on the inside. Hopefully some decent sized chunks. I'll try to remember to run seafoam thru it before I drain it again to see if that helps loosen some chunks. Overall Im happy with the Hubb filter. It was spendy but it seems like a good investment.

[@Jon-O.]

Nice visual but there is a difference in how well it works. You see you did a great job making it visual. But with fluid dynamics you showed how well it holds oil in a open condition. Not a closed condition like it is when mounted on the vehicle. To very different conditions the closed condition will not allow the siphoning off like your open condition in your test does. But however was very interesting.

[@repairvehicle]

Plus oil temperature in vehicle is around 190F and in my garage around 40F. Hot oil flows much faster. Thank you for commenting.

[@Jon-O.]

@@repairvehicle yeah I know very true it would interesting if it could be seen on a vehicle.

[@repairvehicle]

I have some ideas, but not sure how to accomplish yet.

[@Jon-O.]

@@repairvehicle plus the oil pressure might separate the clear plastic from the epoxy.

[@fishonnelson2353]

@Jon O… you were partially correct .. dynamics!!! Oil Pan -> Oil Pump -> Oil filter outer -> Oil filtering material -> Oil filter inner pipe -> **Lubricating engine** In the example here.. it actually proved that the anti drain works. Keep in mind that We are not filtering oil to send oil to the pan.. The test would be a failure if .. any oil flowed back out through the outer filter holes.. Case closed!!

[@David_Nastran]

This test is great for a filter with 2 anti drain back valves. Please make a test like this with MANN Filter W719/22

[@markm0000]

Makes you wonder if the reason so many Subaru engines blow up is because of the bad filter placement and too many dry startups.

[@yunus_aros]

That is a factoid. Most Subaru engines blow up due to people believing they are smarter than the engineer who built the engines from the beginning. The naturally aspirated EJ-series engines had head gaskets of another quality than the turbo charged engines. After some odd 100,000 miles the Teflon coating on the gaskets wore off and started to leak. The first generations of the FA20 ans FB20 engine series had a faulty rocker arm assembly and that has since been corrected. There were also a problem with the piston rings for said engines - but with good oil and 5000 miles oil change intervals that could also be prevented. The top mounted oil filter has nothing to do with these issues. It’s also less messy when you’re doing the oil changes.

[@3kkk514]

Which is better oil filter, Spin-on valve or with return valve?

[@repairvehicle]

What is spin on valve ? What is return valve?

[@3kkk514]

@@repairvehicle in europe if you shop online for car parts, oil filter there is spin-on valve or one anti return valve it depends the brand

[@repairvehicle]

@3kkk514 we don’t have anything like that here in US

[@markm0000]

That was a cool test. The result makes sense how you explained it.

[@darrylm3627]

Good Stuff Great Tips😄👍🏿

[@dalephillips8250]

thanks for this demonstration sir.

[@fishonnelson2353]

@repairvehicle - I like your effort here and your sharing. Please see my comment as this experiment makes a miss on this topic.

[@TRG873872]

Anti-drain back valve prevent oil drain from"outer holes",so oil comes from central tube is NOT valve failure.

[@repairvehicle]

Oil flows through filter media

[@TRG873872]

​@@repairvehiclenormal oil direction,from outer holes,to anti-drain back valve,then through filter media to central tube . It's norma oil from filter to centra tube. It's an oneway valve.

[@TRG873872]

If oil drians from outer holes ,that's a" anti drain valve failure."

[@yunus_aros]

I don’t see the problem with top mounted oil filters here. There are many car makers who have top mounted cartridge oil filters, BMW, Mercedes-Benz, Volkswagen Auto Gruppe (Škoda, VW, Audi, Seat), GM among others. There is still oil in the filter after the drainage (also on top mounted ones). That is thanks to the anti-drain back valve. It will also stay there, as it should. The larger hole in the middle is for the clean oil to pass through easily. The small holes are the dirty side of the filter. You do not want that oil to drain back. Small particulates as small as 2 microns could unfiltered cause damage to your engine for instance on your crank bearings. The risk of introducing those microns or dirt increases by you pre-filling your filters. Personally I never fill the oil filter before mounting it and that is not just because I own a Subaru with a top mounted oil filter. Only if you’ve rebuilt the engine or made an engine swap it makes sense to pre-fill your oil filter. Especially after rebuilding it. The assembly oil is of a higher weight and you want it to lubricate effectively as soon as possible. You put it in there to protect the engine from wear at first start up. Even after an oil drain there is still a lot of oil coating the metal in the engine thus lubricating it at start up. I want to make sure that I do not introduce dirt into the clean oil filter and thus I never pre-fill the filters during a normal oil change.

[@repairvehicle]

How can you prefill top mounted oil filter?

[@yunus_aros]

@@repairvehicle You can. Not just for the cartridge ones, they are easy to pre-fill. Just the way you just showed us. In that long time your filter halfway emptied itself. Instead of letting it just drain out you could pre-fill it and spin it on. The anti-drain back valve will keep enough oil in it. It’s just very unnecessary to do it. Just as I write in my comment: I would not do it.

[@yunus_aros]

@@repairvehicle Also by not pre-filling when doing a normal oil change you reduce the risk of overfilling your engine oil.

[@repairvehicle]

Some manufacturers say it should be done. Subaru filter is small and owners manual doesn't say to pre-fill However, when you have large oil filter and takes 1 quart of oil to pre-fill it makes sense to pre-fill as owners manual states

[@yunus_aros]

@@repairvehicle Well if it says in the owners manual, there is your answer to the possibility to be pre-filling Subaru top mounted oil filters. I have yet to see it in my owner’s manual. I just checked it and it is not mentioned. Neither have I read it in the shop manual for my Subaru model. As I stated in another post regarding the by pass valve there is a very short period of time before the oil pressure is at par and in that time you’ll still have oil coating the metal in the engine. I mentioned it too that Subaru original filters have a higher spec for their by pass valve than for instance Amsoil’s oil filters for Subaru (EA15K13) You’ve since unpublished that video.

[@Jayf1981]

Isn't the valve there to prevent the "engine lube," NOT THE FILTER, from draining back?

[@repairvehicle]

there is no valve except what is in the filter. kzbin.info/www/bejne/oGLQeYxmab6bjKs

[@Jayf1981]

So if my filter is upside down, I don't need a drainback valve?@@repairvehicle

[@Jayf1981]

Is the valve there to prevent the engine or the filter draining back? @@repairvehicle

[@repairvehicle]

@Jayf1981 anti drain back valve comes with filter. It works for short time.

[@repairvehicle]

@@Jayf1981 prevents temporarily oil draining from the filter so that you don’t have dry starts

[@MrCbell57]

oil does not drain upside down when oil filter is hanging off motor. Unless sufficient pressure is pushing it and since motor is not working or on, there should be no pressure. Seems to me its some sales gimmick that you don't want your oil draining out of your filter while motor is idle. It cannot anyways. So why the need for anti drain back unless the filter is positioned on the side of a motor or in an inverted position. Don't know of any.

[@repairvehicle]

What are you driving?

[@TylerHankss]

Anti drain back valve keeps your oil in your engine from leaking down. It serves its purpose.

[@adamsorell4851]

i guess its not needed if filter is mounted verically