Oil Life vs. Performance Mods
Thread Starter
Race Director
Joined: Jul 2007
Posts: 11,467
Likes: 8
From: 972 and 405
Oil Life vs. Performance Mods
Just curious what the guys with serious mods do in regards to the oil change frequency? Boosted engines, forged bottom ends etc. Obviously the OLM was based on a completely factory LS engine so would you go by the tried and true 3,000 mile or less depending on power? Discuss.
-Alex
-Alex
Race Director
Joined: Jun 2009
Posts: 12,331
Likes: 139
My car just turned 111K miles. I have H/C/I/E and a 150 shot of smack all on a stock bottom end. I change the oil every 3K miles full synthetic Edge or Amsoil. Some people disagree I tend to do it out of choice, if you want great protection add engine break in additive again I do it by choice but I have no issues with burning oil, or anything like that.
Race Director
Joined: Dec 2000
Posts: 19,304
Likes: 85
From: San Diego CA
The bottom line is this: Get an oil analysis and find out if YOUR change interval is too soon or not soon enough. I would venture to say that most C5 owners who change their oil at 3000 miles or less are wasting money.
Racer
Joined: Feb 2010
Posts: 491
Likes: 2
From: AZ
I use mobile 1 synthetic. I usually change when the DIC shows ~15%, which is just about 5k miles. Seems reasonable for synthetic.
Just consider that a lot of BMWs go well over 10k to an oil change. In fact, Car and Driver noted that they went about 22k on a long term tester.
Just consider that a lot of BMWs go well over 10k to an oil change. In fact, Car and Driver noted that they went about 22k on a long term tester.
Thread Starter
Race Director
Joined: Jul 2007
Posts: 11,467
Likes: 8
From: 972 and 405
I use mobile 1 synthetic. I usually change when the DIC shows ~15%, which is just about 5k miles. Seems reasonable for synthetic.
Just consider that a lot of BMWs go well over 10k to an oil change. In fact, Car and Driver noted that they went about 22k on a long term tester.
Just consider that a lot of BMWs go well over 10k to an oil change. In fact, Car and Driver noted that they went about 22k on a long term tester.
-Alex
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Le Mans Master
Joined: Jan 2009
Posts: 6,226
Likes: 33
From: Morton illinois
St. Jude Donor '14-'15
I use Mobil 1 15w-50 and it depends on what I do. If im racing, I will change it alot. just street driving? I will go 5000 or so. PLus I have upwards of 10 quarts to change....
not cheap
not cheap
Race Director
Joined: Dec 2000
Posts: 19,304
Likes: 85
From: San Diego CA
This why the C5 uses an algorythm to determine oil life that is based upon how hot the oil gets and for how long it maintains that temperature.
