new shell rotella????

whitearrow · May 6, 2008

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->>>--------------->

mahlers · May 6, 2008

You can use Rotella in gas or diesel engines, and you'd only be giving up a little bit on the cold-start flow capabilities. In general, diesel oils are better at keeping impurities at bay so I use them in all my vehicles and engines.

Marcussen · May 7, 2008

whitearrow said:
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->>>--------------->

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.

Z-Michigan · May 7, 2008

SM is the latest rating. I doubt a Kohler engine requires the current rating anyway. Why switch to a different brand and higher viscosity? Unless you're having issues with oil consumption, or are using it in the arabian desert, I think you would be better staying with the current viscosity. Brand pref is up to you and ultimately not that critical.

Sully2 · May 7, 2008

whitearrow said:
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->>>--------------->

For THAT engine...stick with the 10W-30 Castrol.

whitearrow · May 7, 2008

i guess i just wanted to see how it performed in a much cheaper engine before i put it in my way more expensive atv or diesel tractor.i have been getting a very slight engine clicking,for lack of a better word, on first startup.after it gets warmed up the clicking goes away.i just thought that the rotella might protect better that all.
thanks for all the thoughts,
whitearrow->>>------------->

Kaliburz · May 15, 2008

How old is your Kohler? You might want to try some Marvel Mystery Oil in the oil and/or gas. Suppose to clean up the valves/lifters when used in the oil..... lots of people seem to swear by it on some other lawn/garden tractor groups.

Small gas engines usually use straight 30wt or that multi weight you are using. But try a little Marvel in the crank case.