Quote:
Originally Posted by zachbooze
False alarm. I was looking at the oil temp gauge and it was reading at about 250* F lol. The track temp was well over 100*F and the car was being driven hard, so i'm not too worried. Any aftermarket oil cooling solutions for the z4m or are they not really needed?
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Aftermarket oil coolers aren't necessary on this car until you consistently start seeing 270+, IMO. On one summer day at Buttonwillow where ambient was 116 degrees, and half of the participants were going into limp mode, I was happily blasting around and only saw 265-ish.
I recall one of the suppliers that used to sell my old company transmission lubricants showing us that for every 20 degrees over 240 degrees in operating temp it effectively HALFS the usable life of oil based lubricants. The 10W-60 has at least 15,000 miles of life in them, so even if you're seeing 270 degrees regularly, if you change every 7,500 miles you're more than safe.
10W-60 doesn't vaporize until like 340 degrees I think. Anyway, given the annual change cycle as required on these engines, a few track days of over 250 degrees oil temp isn't really going to do ANY harm.