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Old 11-24-2008, 03:14 PM   #1
dpstang98gt
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Default Are SL2's known to burn oil?

well i got my sl2 back today and decided to check the oil that i changed 1500 miles ago, and it was right in the middle of low and full. The motor has 52k miles on it and runs great with no tick or knocking or any problems, that can be seen or heard. So im wondering why is it in the middle and why did it burn the oil? Is this normal or what? thanks for any help
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2000 Saturn SL2-DD, mostly stock
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Old 11-24-2008, 03:27 PM   #2
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Default Re: Are SL2's known to burn oil?

uh oh run you're gonna get swamped with responses...
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Old 11-24-2008, 04:23 PM   #3
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Default Re: Are SL2's known to burn oil?

I thought by 2000 they had dealt with it, but the DOHCs as a rule burned 1 qt. oil per 3000 miles. Sounds like you're right on schedule.

Check it regularly, add oil when it's low, and don't worry too much more about it.
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Old 11-24-2008, 04:25 PM   #4
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Default Re: Are SL2's known to burn oil?

Quote:
Originally Posted by dpstang98gt View Post
Is this normal or what?
Yes.

Quote:
Originally Posted by daver View Post
I thought by 2000 they had dealt with it
IIRC, they made a modification to the piston or rings to reduce it, but the LL0, LK0, L24 are all fairly prone to burning oil with age, based on how they're treated.

Search the forums for any info regarding reducing this, and why it happens.

Also check your oil regularly.
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Old 11-24-2008, 04:30 PM   #5
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Default Re: Are SL2's known to burn oil?

Quote:
Originally Posted by Cortana View Post
Also check your oil regularly.
by regularly everytime you fill up your tank... As far as the rule of 1 quart every 3K that is completely inaccurate... some people loose a quart every 750 miles. Its cause by the brilliant piston rings. If you are that low of milage, the car is worth the effort, and I would go ahead and re-ring the pisons before it gets outta control and has too many miles for the work (in your eyes possibly)... But its worth the re-ring at such low mileage that if you can do it, or can do it with our help, go for it.
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Old 11-24-2008, 04:56 PM   #6
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Default Re: Are SL2's known to burn oil?

I have a 1997 SW2 with similar mileage (69K) and it's burned 1 quart every 3000 miles for quite some time. This is a little more than I'm used to with other cars, but it's quite manageable.

I supposed if my engine decided to convert itself into a two cycle and burned a qt every 750 miles, I'd just swap out the antenna for an IV pole and get a 5W30 drip going...
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Old 11-24-2008, 05:25 PM   #7
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Default Re: Are SL2's known to burn oil?

Quote:
Originally Posted by OnDaGround View Post
by regularly everytime you fill up your tank... As far as the rule of 1 quart every 3K that is completely inaccurate... some people loose a quart every 750 miles. Its cause by the brilliant piston rings. If you are that low of milage, the car is worth the effort, and I would go ahead and re-ring the pisons before it gets outta control and has too many miles for the work (in your eyes possibly)... But its worth the re-ring at such low mileage that if you can do it, or can do it with our help, go for it.
so your saying if i dont fix this problem anytime soon it will get worse?
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Old 11-24-2008, 05:32 PM   #8
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Default Re: Are SL2's known to burn oil?

My 96 SL2 seems to go through a quart of oil every 1000 miles or so. I check it every 3 or 4 days.
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Old 11-24-2008, 05:33 PM   #9
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Default Re: Are SL2's known to burn oil?

it seems to stay pretty standard on mine. it may get a little worse over time, but i wouldn't worry unless it plummets suddenly at any point.
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Old 11-24-2008, 05:33 PM   #10
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Default Re: Are SL2's known to burn oil?

Quote:
Originally Posted by dpstang98gt View Post
so your saying if i dont fix this problem anytime soon it will get worse?
It may burn a bit more oil as time goes on, but it won't blow up on you or anything like that.
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Old 11-24-2008, 05:40 PM   #11
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Default Re: Are SL2's known to burn oil?

Quote:
Originally Posted by Infinitrium View Post
It may burn a bit more oil as time goes on, but it won't blow up on you or anything like that.
won't blow up, unless you fail to fill it and run it dry
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Old 11-24-2008, 05:49 PM   #12
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Default Re: Are SL2's known to burn oil?

Quote:
Originally Posted by dpstang98gt View Post
so your saying if i dont fix this problem anytime soon it will get worse?
It is possible, very few people do not burn oil, over very little oil. It's just the wonders of the 1.9... Basically, that is the only down side to these motors, given the fact that you maintain it properly, that minus a few easy fixers... will be all that is necessary. Unless like someone else said, you do not catch the lack of oil in time... then bye bye. Take care of a saturn, and the saturn will take care of you... that's the bottem line. Oh and eh change your ects ...
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Old 11-24-2008, 06:00 PM   #13
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Default Re: Are SL2's known to burn oil?

Quote:
Originally Posted by OnDaGround View Post
. Oh and eh change your ects ...
i'm surprised how long it took anybody to say it.

its two of the first three posts in the how-to library.

easy, cheap, necessary.
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1995 SL, born 12/23/94, manual, WAI 190,500, "Doris"
(I'm Ben, the car is Doris)

you can't mulch at those speeds man, that's too fast
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Old 11-24-2008, 06:50 PM   #14
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Default Re: Are SL2's known to burn oil?

I just sold a 1991 SL2 and I had concern about oil loss. No leaks, no blue smoke from exhaust. I read a column on small, high revving engines and a mechanic said it was pretty normal. Due to the "working hard" nature of the engine, it uses more oil.
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Old 11-24-2008, 07:24 PM   #15
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Happy Re: Are SL2's known to burn oil?

I would not worry about it. With my DOHC 94 117K miles, Mobil 5W30, I use about 1 qt every 2500 miles. And that is with 3-5K RPMS every day. Even a few red lines every now and then. But always keep up on the oil changes, and keep the oil full and you will not have any problems.
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Old 11-24-2008, 07:40 PM   #16
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Default Re: Are SL2's known to burn oil?

Consider this then. All of the people who have posted here with rebuilt engines in which they have either installed aftermarket pistons with improved oil ring return paths or drilled their own drain holes in the oil ring land are reporting an oil consumption of effectively zero. At least one individual has accumulated 70,000 miles on such a modified engine.

The oil consumption has nothing to do with "working hard" or high specific power output but with the total lack of oil return drains from the oil ring land area. It was a design decision based on several bad assumptions.
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Old 11-24-2008, 07:49 PM   #17
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Default Re: Are SL2's known to burn oil?

Quote:
Originally Posted by OldNuc View Post
The oil consumption has nothing to do with "working hard" or high specific power output but with the total lack of oil return drains from the oil ring land area. It was a design decision based on several bad assumptions.
if i remember (and initially read correctly) it's a "feature" based on the quality or lack thereof of the 5w oils that were available at the time
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1995 SL, born 12/23/94, manual, WAI 190,500, "Doris"
(I'm Ben, the car is Doris)

you can't mulch at those speeds man, that's too fast
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Old 11-24-2008, 08:48 PM   #18
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Default Re: Are SL2's known to burn oil?

I think it's probably a good time to give Auto-Rx a try. It's been known to do a decent job of cleaning out the engine, particularly when it's not too far gone. It improved my SW1 quite a lot although it didn't completely stop it.

The Search Function is your friend
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Old 11-24-2008, 09:18 PM   #19
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Default Re: Are SL2's known to burn oil?

Quote:
Originally Posted by dorisSL View Post
if i remember (and initially read correctly) it's a "feature" based on the quality or lack thereof of the 5w oils that were available at the time
Yes, and that "feature" was corrected while the engine only existed on paper. Most of the "5w-30 oil ruined my motor" comments came from people who had engines so far gone that they would die on straight 30 weight or the people who filled up with the 5w-30 and then went on a 600 mile trip at 80+mph with 2 stops for gas in 100+ degree heat. The heat breakdown was a real problem and it was promptly corrected. heat breakdown is actually still an issue with all of the petroleum based oils even today. Not a big issue but it can be a problem.
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Old 11-24-2008, 09:21 PM   #20
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Default Re: Are SL2's known to burn oil?

Quote:
Originally Posted by OnDaGround View Post
Oh and eh change your ects ...
what does this mean??
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