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      01-28-2011, 09:51 PM   #5
Brigadier General

Drives: 325xi 06 wagon MT
Join Date: Jan 2010
Location: Santa Cruz, Ca

Posts: 4,288
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Draw your own conclusions but we used to change oil every 3000 miles I don't feel good letting it go over 5 k

There are combustion byproduct build ups and the additives are used up the oil becomes
acidic and you are recirculating this stuff through your motor. This is extra true for turbo cars where the oil runs much hotter.

Oil changes are not a big money making operation

Last edited by ctuna; 01-28-2011 at 09:57 PM.