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Old Sep 15, 2023 | 03:33 PM
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Default C6 Oil level

Is it typical for a 2005 Corvette to burn or use oil? Earlier this year, in Feb or March, I had the check oil level warning and found none on dipstick. I did an oil change at that time. Yesterday I randomly checked the oil level and found it to be below the hash marks. One quart brought it up to right level. My C6 doesn't have a sump (as far as I can tell). It just has a regular oil pan and filter. I never see any oil on my driveway.
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Old Sep 15, 2023 | 03:41 PM
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Originally Posted by C6SEUSA
Is it typical for a 2005 Corvette to burn or use oil? Earlier this year, in Feb or March, I had the check oil level warning and found none on dipstick. I did an oil change at that time. Yesterday I randomly checked the oil level and found it to be below the hash marks. One quart brought it up to right level. My C6 doesn't have a sump (as far as I can tell). It just has a regular oil pan and filter. I never see any oil on my driveway.
You need to do your own oil check to figure out how many miles per quart of oil you’re now getting. These engines do burn some oil but the big question is how much how fast. My 06 uses very little and I never have to add oil between oil changes and mine is S/C. I sure there’s lots of posters that can give you the best way to check how much oil your vette is actually using.
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Old Sep 15, 2023 | 04:25 PM
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If you are burning as much oil as you seem to indicate, you should be seeing blue smoke out the tailpipe at times.
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Old Sep 15, 2023 | 05:32 PM
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You have not given much info. How many miles between the oil change and being down a quart. If it was 5,000 mi's that not to bad if it was 1,000 mi. its alot. If you still have cats you won't see blue smoke ,but it will kill the cats.
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Old Sep 15, 2023 | 05:46 PM
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Excessive oil consumption is more than 1 quart every 2000 miles…from Service Info.



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Old Sep 15, 2023 | 06:02 PM
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My 2005 has never been low on oil in the 10 years of ownership. Your oil is going somewhere....
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Old Sep 15, 2023 | 07:08 PM
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I did not write the mileage down when I changed the oil in Feb or March but I did reset the oil life counter. Right now the oil life is at 80%. So it appears I used or burned a quart in that first 20% in about 7 months.
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Old Sep 15, 2023 | 07:23 PM
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That's a lot going somewhere. Typically very little is used unless track time.
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Old Sep 15, 2023 | 07:59 PM
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Owned my LS2 for 16.5 years and 107,000 miles and have never had to add any oil between my 8,000+ mile interval oil changes.

One quart at 80% remaining oil life may come out to about 2,000 miles.
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Old Sep 15, 2023 | 08:22 PM
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Thanks all. Sounds like I should get it checked out.
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Old Sep 15, 2023 | 09:03 PM
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No. First get good information. Change oil, mark full on dipstick, record miles on odometer. Drive as much as 1,000 miles and check level. If lower, record how much is required to bring to correct level. Then you would know quarts or part of quarts per 1,000 miles. Come back with the results.
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Old Sep 15, 2023 | 09:31 PM
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I have 2005 for last 12 years I check it all the time, never been low, bought it with 17,000 and now have 87,000.
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Old Sep 15, 2023 | 10:07 PM
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Originally Posted by Chatman
No. First get good information. Change oil, mark full on dipstick, record miles on odometer. Drive as much as 1,000 miles and check level. If lower, record how much is required to bring to correct level. Then you would know quarts or part of quarts per 1,000 miles. Come back with the results.
t
This
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Old Sep 15, 2023 | 11:14 PM
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My 06 has 90k miles and uses zero oil. But a quart every 1000 miles is no reason to panic. A quart every 500 miles I'd be concerned.
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Old Sep 16, 2023 | 08:30 AM
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When VW first brought out their water cooled 4 cylinder, they wouldn't do anything about oil consumption unless it was worse than 1 qt in 300 miles! I wouldn't be concerned about 1 qt in 2000 miles. Mine uses zero.
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Old Sep 16, 2023 | 09:12 AM
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Originally Posted by C6SEUSA
Thanks all. Sounds like I should get it checked out.
Be sure to post what you find. Important information for others.
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Old Sep 16, 2023 | 10:52 AM
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My oil and filter change was Saturday March 18, 2023. The recent check, where I found the oil level to be a quart low was on September 14, 2023 so the length of time was 6 months. This is a daily driver but I only go short distances and not every day. Probably about 75 miles per week at most so about 2,000 miles since my March oil change.
My harmonic balancer was replaced twice, once in early July and then in mid August. Long story as to why that happened but can you lose some oil during that work?
https://www.corvetteforum.com/forums...owing-hot.html

But the odd thing is the low oil warning in March just before I changed the oil.

61471 is current mileage.

Last edited by C6SEUSA; Sep 16, 2023 at 11:01 AM.
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Old Sep 16, 2023 | 11:12 AM
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+ 1 Post 11.

My experience is similar to Post 17, my 60K mileage LS2 will use a 1/4 to 1/2 qt every 1000 miles, definitely not a quart!

Blue smoke is a signal to observe.
Then a compression test and a leak-down test would offer mechanical insights.
Not much else I could say, except emphasizing Post 11.

Good luck.
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Old Sep 16, 2023 | 05:29 PM
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No oil usage what-so-ever with my 07 LS7 S/C'd and just ready to turn over 75K miles.
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Old Sep 16, 2023 | 08:22 PM
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Originally Posted by C6SEUSA
My oil and filter change was Saturday March 18, 2023. The recent check, where I found the oil level to be a quart low was on September 14, 2023 so the length of time was 6 months. This is a daily driver but I only go short distances and not every day. Probably about 75 miles per week at most so about 2,000 miles since my March oil change.
My harmonic balancer was replaced twice, once in early July and then in mid August. Long story as to why that happened but can you lose some oil during that work?
https://www.corvetteforum.com/forums...owing-hot.html

But the odd thing is the low oil warning in March just before I changed the oil.

61471 is current mileage.
If you are using a conventional oil try a high quaity synthetic on your next oil change.If you are having someone else change your oil, check the oil level right after the change. Just to make you are starting at full. Not everyone is at these places are competent or conscientious.
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