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#1
2008 GP Base with 3.8 engine oil maximum capacity ??
SE Level Member
12-18-2019
What is the maximum oil capacity of 3.8 engine?
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#2
Re: 2008 GP Base with 3.8 engine oil maximum capacity ??
GTP Level Member
12-18-2019
4.5 quarts. It will take 5 because they usually leak.
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#3
Re: 2008 GP Base with 3.8 engine oil maximum capacity ??
SE Level Member
12-18-2019
Actually I want to know the MAXIMUM capacity ... NOT the NORMAL capacity !
My grandson has this 2008 GP with 3.8 ... looks like some filled oil twice ...about 3/4 inch above full mark !
We drained some .. still over full !
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#4
Re: 2008 GP Base with 3.8 engine oil maximum capacity ??
GT Level Member
12-18-2019
Originally Posted by
GP2005GXP
Actually I want to know the MAXIMUM capacity ... NOT the NORMAL capacity !
My grandson has this 2008 GP with 3.8 ... looks like some filled oil twice ...about 3/4 inch above full mark !
We drained some .. still over full !
I'm confused on why the answer matters. If it's over full, then just drain til it's not over full anymore. Not sure anyone knows the answer to how much can the engine actually take up to the brim. Obviously, that's not good to the long term health of the engine anyway.
1999 GTP...stock for now
2007 Suburban...far from stock
1991 GMC Dually...74k original miles. Work in progress. Far from done.
1977 C-10 (my baby)...too many mods to list
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#5
Re: 2008 GP Base with 3.8 engine oil maximum capacity ??
12-18-2019
id suck it out the dip stick with clear tubing, you need enough tubing to be deep in the oil pan then over the bumper to the ground, then siphon it out to a empty oil qt bottle. once its full. pull the tube and check the level. repeat if need be.
being its winter, warm the engine up first so the oils hot and thinner, will come out way easier vs cold.
98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails
L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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#6
Re: 2008 GP Base with 3.8 engine oil maximum capacity ??
GTP Level Member
12-18-2019
Or use a vacuum extractor through the dipstick. Insert the tube to the full level on the dipstick and suck until it quits.
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#7
Re: 2008 GP Base with 3.8 engine oil maximum capacity ??
SE Level Member
12-18-2019
[QUOTE=GP2005GXP;1500785]Actually I want to know the MAXIMUM capacity ... NOT the NORMAL capacity !
My grandson has this 2008 GP with 3.8 ... looks like someone filled oil twice ...about 3/4 inch above full mark !
It is all oil ... NO coolant !
We drained some .. still over full ![
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#8
Re: 2008 GP Base with 3.8 engine oil maximum capacity ??
Turbo is the way to go.
12-19-2019
Cool story man.
As said, if it's over the full mark keep draining the oil out until it's not over full.
To answer part of your question, you could probably dump in 20 quarts of oil before it would start pouring out the valve covers. But by this time if you attempted to start the engine it would likely reverse hydrolock because the crank/pistons can't spin because it's completely full of oil.
At roughly 6-7 quarts of oil the crank would be slapping the oil causing it to foam and may lead to damage.
SMGPFC Member #1
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#9
Re: 2008 GP Base with 3.8 engine oil maximum capacity ??
Donating Users
12-21-2019
So....huh? If you speculate that someone filled the oil twice without draining it, why don't you just remove about 4.5 qts and check? You said you drained"some". Drain more till it reads full on the dipstick.
Top Swapped 01 Imp
VS (very small?) cam, SD Headers, 2.8" pulley, 29°, ported everything, E85, AEM water/meth, Deka 60's, HPT tuned
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#10
Re: 2008 GP Base with 3.8 engine oil maximum capacity ??
GT Level Member
12-21-2019
or better yet, completely drain it then put 4.5 qts in so you know exactly how much is in there.
--
"Silver Bullet" 98 GTP Coupe: Stock, rust free, and broadsided.
Old '98 GTP Coupe: VS Cam, 3.0, S2IC, 42.5#, TOGs, N*/LQ4, Corsa. it once ran a 13 flat
Older '98 GTP Sedan: Pullied, rockered, SSIC, etc. Stock 14.33 @ 96.5 / PB: 13.89 @ 101
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#11
Re: 2008 GP Base with 3.8 engine oil maximum capacity ??
GT Level Member
12-22-2019
Originally Posted by
mguzzo
or better yet, completely drain it then put 4.5 qts in so you know exactly how much is in there.
thats just too logical
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