Oil Change question?
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Joined: Jan 2005
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From: Sandusky Ohio
Oil Change question?
Just a quich question. How long mile or length wise do you wait from oil change to oil change?. I did mine after 3,000. Only 3,500 on it now but I heard you should wait more along the lines of 5,000 with the synthetic oil.
Thanks in advance
Thanks in advance
Burning Brakes
Joined: Jan 2005
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From: westminster California
You don't have to do it until the computer says to or once a year which ever is shorter. Definatley no more than every 6000 miles according to jiffy lube with mobil one synthetic oil.
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Typically - I follow my DIC! When it's gets to around 35% oil life left, I change the oil, which for me is about 4K miles. 
Drifting
Joined: Dec 2004
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From: Oshawa Ontario
There was just a big thread about this recently. Seems that you should trust the Oil Life Monitor on the DIC, and not just change at ~35% - 45%
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Last edited by Cap'n Pete; Jan 16, 2005 at 11:45 PM.
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From: Mustang OK
First, welcome to the Forum. 
The following thread on this same subject just went around a few days ago. Evil-Twin is a retired GM engineer who is very knowledgeable in this area and you may want to pay particular attention to what he has to say on this subject in this thread:
http://forums.corvetteforum.com/showthread.php?t=986671
The following thread on this same subject just went around a few days ago. Evil-Twin is a retired GM engineer who is very knowledgeable in this area and you may want to pay particular attention to what he has to say on this subject in this thread:
http://forums.corvetteforum.com/showthread.php?t=986671
Last edited by GrayC5; Jan 17, 2005 at 12:23 AM. Reason: typing/spelling
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Thread Starter
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Joined: Jan 2005
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From: Sandusky Ohio
Thanks all. I've read about 200 post I can't believe I missed that one. Great info in this post and that one. I think since GM did all the testing that Evil stated I will use the DIC unit and go by it. I just can't believe all this car can do. I read the owners manual and I'm still learing more from just reading post.
Thanks all..
This is a great place for learning
Thanks all..
This is a great place for learning
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Originally Posted by eddie44
I normally do mine at 5,000 unless I've done some "spirited" driving. 
Drifting
Joined: Jan 2001
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From: Slidell La
Oil Change
I change my Vet at 6000 and the Mercedes which uses Mobile 1 at 12,000. The data I have found indicates that M1 is effective until about 12,000 miles. Then the particulate matter begins to increase. Changing the oil filter and adding a qt at 12K miles will return the oil to acceptable for another 6000 miles. The data indicated not to go beyond 18,000 due to viscosity changes in the oil.
The GM reco, for my 99 is 7500 miles, I believe the 04 C5 is 12,000 miles. I think you probably will spend a lot $$ by changine too early. But just my $.02 worth. Besides my full time job is to wear out my C5 so I can buy a C6. Currently my C5 has 60K on it and oil consumption is impreceptable at 6000 miles. Engine and car is great. Jim
The GM reco, for my 99 is 7500 miles, I believe the 04 C5 is 12,000 miles. I think you probably will spend a lot $$ by changine too early. But just my $.02 worth. Besides my full time job is to wear out my C5 so I can buy a C6. Currently my C5 has 60K on it and oil consumption is impreceptable at 6000 miles. Engine and car is great. Jim
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From: Johns Creek GA
Mine doesnt get driven all the time, so I change it 1 time a year. I just changed it this past weekend. In the 1 year, I had 2,155 miles since the last change a year ago.
If I did put more miles on it, I would go via the DIC and change it in the 25-30% range probably.
If I did put more miles on it, I would go via the DIC and change it in the 25-30% range probably.
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I change my oil when the oil life monitor reads about 40-45% life remaining. That comes out to about every 4500 miles.
Burning Brakes
Joined: Apr 2003
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From: Grants Pass OR
I use Mobile 1 in all our cars and change if myself. Mercedes Benz says Mobile 1 can go 10,000 miles between changes. I say 7,500 or one year. Most manufacturers agree that conventional oil, which is about half synthetic, can easily go 5,000 miles between changes. If you can see through the oil to your dipstick, you have some life remaining. If you can't see through the oil on the dipstick, change it immediately.
Dan
Dan
Melting Slicks
Joined: Jul 2003
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From: Fountain Inn, South Carolina
Mobile One.... 10,000 miles per change. That is with mixed City, Highway, and racing. Pushing 60,000 miles with no problems.
For some reason, lots of Vette owners beleive their Vette is not as good as many other cars on the streets and are afraid to let the oil run it's life course... I find this very strange.
Oh well, you trust your car or you don't. Many other auto manufactures with cars using Mobile One recommend oil changes from 10,000 to 15,000 miles. So 10,000 on the low end of the scale is fine
For some reason, lots of Vette owners beleive their Vette is not as good as many other cars on the streets and are afraid to let the oil run it's life course... I find this very strange.
Oh well, you trust your car or you don't. Many other auto manufactures with cars using Mobile One recommend oil changes from 10,000 to 15,000 miles. So 10,000 on the low end of the scale is fine
