3800 Oil Filter question...

[Xtant12]

So I need to change my oil and I was wondering if anyone knows the number for the BIGGER filter...

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[smug]

when you go to the store look at the 4.3 chevy blazer. Thats the filter you want.

 

[Xtant12]

when you go to the store look at the 4.3 chevy blazer. Thats the filter you want.
[/b]

THANK YOU!!!

 

[syP]

why would you want to go bigger?

 

[Sinister Drag Designs]

lots of us use the 4.3 filter, zzp even has a write up to explain in full

 

[preussenGTP]

PF-52
And don't forget to add more oil to compensate for the increased volume of the larger filter - maybe half to 3/4 of a quart.

 

[Turbocharged400sbc]

why would you want to go bigger?
[/b]

more filter media suface area for better flow with less pressure drop (same reason i'm drilling mains for less pressure drop past the cam bearing shells) as well as more oil capacity (for the same reasons you would like more coolant capacity in an A2W IC system)

the only drawback is the increased time it takes for the oil to fill a new (larger) filter after an oilchange which means a little longer for oil to get to the bearings...this is minimized by running the engine just prior to the oilchange (fresh oil on the bearing surfaces)
thankfully we dont have an issue with oil drainback that horizontal or upside down filter equipped engines have so the filter doesnt have to be refilled after sitting which can cause accelerated bearing wear from repeated dry startups

and it spins right on with no problems....cheap insurance

 

[b4black]

PF-52
And don't forget to add more oil to compensate for the increased volume of the larger filter - maybe half to 3/4 of a quart.
[/b]

I don't think the differance between the PF-47 and the PF-52 is 3/4 of a quart. Maybe a 1/4 at most looking at it from the outside, but it's packed with filter media. Fill it up normally and then check the dipstick.

 

[preussenGTP]

Another helpful hint i'd like to add to what James just said about starting the motor with the bigger filter.. You can fill the larger new oil filter <PF-52> up about 3/4 of the way full with oil prior to screwing it back on - being careful not to tip the filter too far to one side so as to avoid spilling oil.
Doing this will help to prime the motor when starting it immediately after the oil change so it wont start on a dry sump.
I do this everytime i change my oil. And yes, it is a little harder to do with the larger filter due to the limited area of space by the control arm

I don't think the differance between the PF-47 and the PF-52 is 3/4 of a quart. Maybe a 1/4 at most looking at it from the outside, but it's packed with filter media. Fill it up normally and then check the dipstick[/b]

Yeah you're right it's closer to 1/4 to 1/2 a quart difference

 

[imported_Theautoguy]

Another piece of trivia, the 3800 and the 3400 both use the same filter so I started using the bigger filter on the Alero oil changes.