platinum997

Couple of thoughts I have heard on this.

1. Change with operating hours. If going this route all kinds of thoughts on hour interval 10-25 is what I have seen.
2. Change after each track event regardless of hours.
3. Change at standard mile/month interval.
4. Analysis every oil change at blackstone and adjust from there.

Not turning this into a what brand of oil discussion... what are most of you doing. I have been running 3-4 hour track, plus 2-3000 miles before changing. All looks well but interested in others opinions

nwGTS

This depends on how the car is used.

If it's a 100% track car, just change after every track day/weekend.
If it's a daily that you track occasionally, change before your track day.
I'm 50/50 track/street and my interval covers three track days and about 2k-2.5k miles.

Blackstone report revealed that as a good interval for me.

platinum997

Ok.. I'm about the same then. One weekend and a few thousand miles.

Thanks

stronbl

^^^^ nwGTS - I think this is good advice. I had started doing it twice a track season (at start and mid year) but after several oil analyses I am going to at start of season only unless I do excessive track days (> 30 per season).

Falcondrivr

Mine is a daily driver and 6 track weekends a year. I change AFTER each track weekend as I don't want to be driving it daily with all the gas (blow by) mixed into the oil from the weekend at full throttle.
In other words, I think daily driving is very easy on the oil. Track driving ruins it. So I'd rather have good stuff in there for fthe majority of the time.

SoCal C2S

Track and about 2k miles, in that order.

cosm3os

Is this a .2 thing cause my oil analyses never show fuel.

Sneaky Pete

I use a race oil for track weekends that is good for 650 miles. Once I'm close to the 650 I change it to street oil. The car always has fresh oil.

Falcondrivr

Mine's a .1 (2007) I haven't had the oil analysis done. But I figure with a track weekend I'm doing 7 hours at basically full throttle, there must be some blow by occurring.