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Old 11-12-2006, 01:14 PM   #5
2nd Gear Member
Join Date: Oct 2006
Location: Oakville
Posts: 84
i think for most day to day driving most sythetics are fine. since i recently bought my z3 i've started doing my own changes to save some $$ and if you start researching syn oil its almost like a cult on its own. i did my first with quaker full synthetic and will use the german castrol for my next one. i think Mobile 1 is also good for the money and many bmw owners use it.
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