My Truck is "making" oil?????

[gsbrockman]

Am I the only one noticing the filters are only half full when changing? I have seen people comment on this on other threads.

Mine is only about 1.25" below the gasket whenever I remove mine.

The most memorable oil changes I recall were the ones where I'd been on a longer haul with at least 4.5 to 6.0 hours of engine run time.....arrive home, leave my truck running, walk through my front door, kiss the wife & daughter, change clothes, gather up the drain pan, shut off the truck, then pull the drain plug. I'm a thorough believer in changing the oil when it's at operating temperature----for several hours at a time.

Call me a glutton for punishment I guess.....that's the way my Dad taught me.

 

[Newsa]

Mine is only about 1.25" below the gasket whenever I remove mine.

The most memorable oil changes I recall were the ones where I'd been on a longer haul with at least 4.5 to 6.0 hours of engine run time.....arrive home, leave my truck running, walk through my front door, kiss the wife & daughter, change clothes, gather up the drain pan, shut off the truck, then pull the drain plug. I'm a thorough believer in changing the oil when it's at operating temperature----for several hours at a time.

Call me a glutton for punishment I guess.....that's the way my Dad taught me.

Your way is better. I sometimes do it that way. But with a 12 qt sump, and running full synthetic and 2 filters, I occasionally take a shortcut. (Also changing the oil on significantly shorter mileage intervals than Ram recommends). If I went more than 10,000 miles between changes, i would take my time and allow several hours to do it right. The truck has 20,000 miles and this was it's 6th oil change

I think my filters were a bit lower (holding less) on oil this change than the one i did in Sept.

 

[gsbrockman]

**Duplicate Post**

not sure why

 

[AH64ID]

What Amsoil bypass filter are you running and how is it mounted?

Oil is not sucked thru any filter, it is pushed thru the filter by the oil pump.

Idle moves PLENTY of oil to fill the filters nearly instantly; however, the mounting position of the EaBP my take a little longer.

 

[Newsa]

What Amsoil bypass filter are you running and how is it mounted?

Oil is not sucked thru any filter, it is pushed thru the filter by the oil pump.

Idle moves PLENTY of oil to fill the filters nearly instantly; however, the mounting position of the EaBP my take a little longer.

https://www.amsoil.com/shop/by-prod...al-single-remote-bypass-system/?code=BMK21-EA

I mount the EaBP100 filters on the above filter mount which is mounted on the frame rail (inside) under the full flow filter. And back about 6 inches toward the axle.

I realize the oil is pushed through both filters. But when the engine is turned off. The pressure difference seems to reverse the flow and some of the oil seems to go the opposite direction.

This last time, I didn't bother pre-filling the filters with fresh oil. I agree that the pump fills the filters fast enough at idle.

 

[AH64ID]

Yes the filters will slowly drain back upon shut down, but it takes a while and is not a function of pressure/reverse flow at shutdown. If you go to change your oil with a hot block the filters will be FULL and spill but they will drop down to 2/3-3/4 after getting cold. Part of that is the oil contracting as it cools, but that only accounts for approx 5%. The quantity of oil that leaves the filter on a cold engine is likely not even 1/8 quart, which is 1/16th of the cross-hatch range on the dipstick, hardly enough to notice.

The filters being 2/3 full won't effect how much oil you add at the change. If it's not in the filter it's in the pan. There is some oil left in the block at the change thou, between the head, oil pan design, and oil cooler up to a quart of oil can be left in the block. This is the main reason folks are overfilled when they dump 3 gallons in the pan and call it good, yet most of them claim the dipsticks are wrong...

The EaBP-100 adds approx 1.5 quarts to your system, making your total capacity approx 13.5 quarts. You should have to add 12.5-13 quarts to get it to the top of the dipstick.

With my EaBP-110 I have to add 13-13.5 quarts to my system at the change to be within 1/4" of the top of the cross-hatch.

 

[Newsa]

I've never seen 1/2 full filters on any other car that i've had and they also get to almost 200°F.

This last oil change the filters were close to half full.

 

[AH64ID]

Many oil filters use anti-drain back valves; however, these do not.

The design/location of the filter, pump, etc will dictate how much, if any, oil will drain back out of the filter.

Our filters are very high on the engine so only a little oil will flow back thru them, unlike many car engines where the filters are below all the galleries.