JNS_E85 I do an occasional autocross, the most I have done in a year was 2 years ago I attended 4 held by the BostonBMWCCA. The course is about 1 mile long and you get eight runs in most days. I hadn't considered this to be too stressfull on the oil but it may be worth keeping in mind in the future. Part of my concern is that if I dont have a lot of miles on the oil am I getting true readings on the blackstone report? If there is engine wear would you miss it by doing more oil changes?
I also change brake fluid once a year as I hear it absorbs moisture in the air which degrades it. I have yet to flush coolant and have not yet had the differential fluid changed so I will note both of these for next spring.
I appreciate your response.
-E
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