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Originally Posted by whitearrow
hello all.i was wondering how the new shell rotella 15w-40 would do in my gas powered kohler engine?i have been using castrol gtx 10w-30 in it for about 7 years.i was just wondering if the new rotella was even rated for use in gas powered engines.
thanks,
whitearrow->>>--------------->
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The Rotella triple 15W-40 is rated SM-SL for gas engines so as long as your engine is rated for the viscosity no problems. I believe SM is the latest API rating designator.