Quote:
Originally Posted by shineboy
Supplment says see manual. Same as standard Focus but I will go by severe duty since its turbo
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For the sake of the turbo and all the high temp that's in there use the full synthetic. Having already done mine at 1200 miles after tracking the car I can say you will notice a difference in the oil press and oil temps.
I change mine every 3000 to 5000 miles under "normal" conditions, but under track conditions I will dump it every 3000 period.