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EXDUNER127
03-24-2003, 08:00 AM
Somebody please answer this thread I need answers please...
does any one know if you can run regular auto motor oil in a 400ex, someone says to use mobile1 15w40 cause it runs cooler in warmer climates is this true....please trying to find cooler running motor oil!

AtvMxRider
03-24-2003, 08:02 AM
That's the oil I use all year round.

EXDUNER127
03-24-2003, 08:08 AM
people say you need oil to support a wet clutch does the mobil 1?

AtvMxRider
03-24-2003, 08:11 AM
I've never had a problem with it.

UglyMotha™
03-24-2003, 08:13 AM
been running it for two years with no clutch slippage