[R.W.240]

I've heard that the 25,000 mile Mobil is so slick that it clears its self off the bearings when it sits for a while.

I use Hydrotex 15W-50 in my motor and I've been told by more than one person it was what kept my bearing from grabbing and Spinning. Supposedly its also who Mobil Outsources to for use in racing. it also helps keep the motor cleaner than others since it has so many detergents in it.