use full synthetic or you can 10w30 for winters and10w40 or 20w50 for warmer weather's
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synthetic oil (ZF life guard) made in Germany
depends on what oil your talking about if your changing the motor oil is synthetic oil that must be used. BMW recommends castros synthetic oil but its all your choice on what synthetic oil you want to put in it. i have royal purple in my 325i 2003 and it feels alot better to drive.
The manufacturer recommends using 10W-30 weight oil in the 2002 BMW. A heavier motor oil can be used in extreme climates.
A 46mm oil filter wrench is used on a 2003 BMW 325i. The wrench allows the center nut on the filter housing to be turned and removed easily.
Ron 97
Take it to Jiffy Lube.
$53 at walmart
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