C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
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Old Aug 27, 2017 | 01:12 AM
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Hey Gentlemen
I have a 2002 ZO6 corvette. I have had a "low oil message" come on, but Chocked it up not putting enough oil in when I changed the oil myself. Let me back up a minute, I had my oil changed before and thought was the low oil sensor so I changed that out. Change oil again maybe 1500 miles since last oil change "low oil message" put quart of oil in message did not come back. Now 3 weeks later came back again? Added 1 qaurt again no message. Now when I get on it black smoke comes out of my exhaust. That tell me oil is by passing the pistons? Any help would be appreciated.
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Old Aug 27, 2017 | 07:21 AM
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The LS6 received the new napier rings in 2002 at the start of the model year production. The LS1 received a few weeks into the production year. Black smoke is usually indicative of a rich condition.

Not sure how many miles are on the car, but the valve seals could also cause oil loss. Do you get a puff of smoke when you first start the car? If you decelerate and then step on the gas do you get blue smoke? Is the PCV working correctly? The 02 PCV system will pull quite a bit of oil into the intake, which is why a lot of guys install catch cans.

Type of oil may play into this as well, what oil are you using?
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Old Aug 27, 2017 | 11:41 AM
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Originally Posted by vettenuts
The LS6 received the new napier rings in 2002 at the start of the model year production. The LS1 received a few weeks into the production year. Black smoke is usually indicative of a rich condition.

Not sure how many miles are on the car, but the valve seals could also cause oil loss. Do you get a puff of smoke when you first start the car? If you decelerate and then step on the gas do you get blue smoke? Is the PCV working correctly? The 02 PCV system will pull quite a bit of oil into the intake, which is why a lot of guys install catch cans.

Type of oil may play into this as well, what oil are you using?
It may be rich have not had it Tuned in a while got to get with Chuck.
No puff of smoke on start up.
I will check the PCV system. I use mobile oil . Thanks for info will do the PCV check first. along the line no oil spots.on floor. so I know its not leaking.
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Old Aug 27, 2017 | 04:42 PM
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Originally Posted by stingray76l82
It may be rich have not had it Tuned in a while got to get with Chuck.
No puff of smoke on start up.
I will check the PCV system. I use mobile oil . Thanks for info will do the PCV check first. along the line no oil spots.on floor. so I know its not leaking.
Did you check the oil level before adding both of those quarts of oil??
May have too much oil in it!
Just sayin'!
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Old Aug 27, 2017 | 04:49 PM
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Yes I did when I put the quart of oil in the message went away. 3 weeks later same thing happen put quart in message went away. I am going with the PVC or seals.
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