[naz]

SmokeBCBuDZ,Jan 7 2007, 03:08 AM Wrote:Conventional vs Synth
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so they thinned out the oil in the motor and it made more power. that's great i guess, but i put oil in the motor to keep metal away from metal not to gain a handful more hp, so that article isn't telling me anything

personally, when i did research on oil i looked on forums where people with the same vehicle as me post their used oil analysis results to see what kind of additives remained in the oil and whether it sheared down to a lower viscosity. i'm personally not comfortable with extended oil change intervals and after 3k miles many ppl post UOA of a good conventional oil like havoline that were good, so that's the way i went.

and subarus are not ford focuses, but i would really research long and hard before dumping expensive oils anywhere into the vehicle.. for a long time SOA took a stance of 'no synth oils in the 2.0 L turbo motor' and synthetic gear oils like red line were causing synchro failure left and right in the tranny.. personally i use havoline conventional oil in the motor, and OE factory fill conventional oil in the tranny and differentials.

ford has motorcraft oil that i presume is formulated to an OE spec, does it not? if i still had my focus that is what i would put into the motor