Originally Posted By: smbstyle
Originally Posted By: dparm
So far I'd say the high temps are not hurting anything, but I will consider a shorter change interval if you are going through repeated track days on a single OCI. I assume that car has a normal-sized sump (5-6qt); many of the high-performance cars, like my M3, Corvette, 911, etc have very big sumps -- 8+ qt.
While the sump temps might be nearing 300 F, remember that in critical parts of the engine the oil is even hotter.
Thanks for the feedback. Yes, a 6 quart sump. I am changing the oil after every 4 track days, so about 2,000 miles. Do you suggest shorter than that?
Do you really think you need to change it every 2000 miles? A co-worker does a lot of racing with an STI and an Evo. He tells me that the oil manufacturers have recently recommended to racers, to start with fresh oil at the beginning of the season, and after each race, change filter and top off. Then at the end of the race season do a full oil & filter change.
Originally Posted By: dparm
So far I'd say the high temps are not hurting anything, but I will consider a shorter change interval if you are going through repeated track days on a single OCI. I assume that car has a normal-sized sump (5-6qt); many of the high-performance cars, like my M3, Corvette, 911, etc have very big sumps -- 8+ qt.
While the sump temps might be nearing 300 F, remember that in critical parts of the engine the oil is even hotter.
Thanks for the feedback. Yes, a 6 quart sump. I am changing the oil after every 4 track days, so about 2,000 miles. Do you suggest shorter than that?
Do you really think you need to change it every 2000 miles? A co-worker does a lot of racing with an STI and an Evo. He tells me that the oil manufacturers have recently recommended to racers, to start with fresh oil at the beginning of the season, and after each race, change filter and top off. Then at the end of the race season do a full oil & filter change.