95 sl saturn
Thread Starter
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Junior Member
Joined: Jul 2005
Posts: 1
From: United States
i have a 95 sl 4 door. doch 2.0. runs great and everything but i have a oil problem theres no leeks or anything so it must be using it somehow. i have to had about 2 quarts of oil per tank. can you guys help me out
Super Moderator
Joined: Jul 2005
Posts: 12,315
From: Slightly off center
Can't help you -- but can explain what's going on:
The engines on the S cars are notorious for burning huge quantities of oil as the mileage gets above 110K (on average).
The oil control rings wear and/or seize in place at the top of the
pistons, which allows oil to leak past the rings and get into the
combustion chamber, where it is burned along with the air/fuel mixture.
The valves are also probably not sealing well as the seals are worn -- again letting oil into the combustion chamber.
The valve guide seals (valve guides guide the motion of the intake and
exhaust valves) are also probably worn -- yes, more oil getting into
the combustion chamber.
If you're going to continue to drive as is, do not let the oil get down
by more than 1/2 to 3/4 of a quart. These engines only hold 4 1/2
quarts total -- so 2 quarts low is driving with almost half the oil
missing! You are greatly accelerating the wear on your engine.....
____________
Having had a 95 DOHC partially rebuilt by Saturn to address this same
issue, I can state from experience that it is probably worth the extra
$$ to put a factory remanufactured engine in (if you refuse to part
with your Saturn and intend to keep the car indefinitely) vs having it
rebuilt.
If you do choose to do a partial rebuild, do the rings and replace the
cylinder head with a remanufactured one (I did not) -- you should </span>end
up with a car that burns very little oil -- versus one that eventually
returns to consuming oil -- but a steady, fixed amount (my 95 -- still
running -- 182K+) -- once the rest of the seals (valve guide seals were
not replaced in my case) continue to wear.
The engines on the S cars are notorious for burning huge quantities of oil as the mileage gets above 110K (on average).
The oil control rings wear and/or seize in place at the top of the
pistons, which allows oil to leak past the rings and get into the
combustion chamber, where it is burned along with the air/fuel mixture.
The valves are also probably not sealing well as the seals are worn -- again letting oil into the combustion chamber.
The valve guide seals (valve guides guide the motion of the intake and
exhaust valves) are also probably worn -- yes, more oil getting into
the combustion chamber.
If you're going to continue to drive as is, do not let the oil get down
by more than 1/2 to 3/4 of a quart. These engines only hold 4 1/2
quarts total -- so 2 quarts low is driving with almost half the oil
missing! You are greatly accelerating the wear on your engine.....
____________
Having had a 95 DOHC partially rebuilt by Saturn to address this same
issue, I can state from experience that it is probably worth the extra
$$ to put a factory remanufactured engine in (if you refuse to part
with your Saturn and intend to keep the car indefinitely) vs having it
rebuilt.
If you do choose to do a partial rebuild, do the rings and replace the
cylinder head with a remanufactured one (I did not) -- you should </span>end
up with a car that burns very little oil -- versus one that eventually
returns to consuming oil -- but a steady, fixed amount (my 95 -- still
running -- 182K+) -- once the rest of the seals (valve guide seals were
not replaced in my case) continue to wear.
