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If you are tracking your car, you need a completely different oil than if you are using it only or mostly on the street. for track use, you need a synthetic base stock oil. most synthetic oils today do NOT come from a synthetic base stock. synthetics resist heat much better (i.e. track use). I use exclusively 0W-40 Mobil 1 European formula because it comes from synthetic base stock. 40W to better resist heat. other Mobil 1 oils do NOT. check with mfg. if you dont believe me. I have 50 track days on '13 BRZ and change oil and filter every other weekend.
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