[Putt-Putt]

I use Shell Rotella 5w/40 synthetic In my BRP 800 quad for last 2 yrs. Whitch also requiers a 5w/40 syn. No problems what so ever.

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[Tonga]

Mark S., on Mar 24 2008, 12:58 PM, said:

Why would you want to use a Mobil One oil that doesn't meet manufacturer's specs and costs $5+ per quart when you can use Shell Rotella T Synthetic which DOES meet manufacturer's specs and costs only about $15 per gallon at your local Wal-Mart?

If I did the math correctly, you can buy four quarts of Shell Rotella T Synthetic for the cost of three quarts of Mobil One.

Mobil One and Amsoil "motorcycle" oils cost much more than Shell Rotella T Synthetic and provide no added benefit.

Regards,

Mark

Hi Mark. Mobil 1 does meet spes but not the viscousity. People hae been useing different viscousity oils sinse time began. I don't think it bad to put 10w40 over 5w40. One thread mentioned diesel Mobil 1 5w40 so I looked it up and yes it is an SL, SJ rated oil. The Shell Rotella synthetic would be great if I could find it. Only the regular stuff on our shelves here in Canada and when I was in Florida as well. Don't like BRP because it's supposed to be made by Castrol and all BRP stuff is high in price as well.

[Putt-Putt]

Oh one last thing. When I started riding bikes Triumph's - BSA's etc. We used straight 50w. Then when they came out with 20w/50 oil been using it ever since; 38 bikes later so far not a oil related problem.with any of them. Still run 20w/50 in the BMW & Virago.

[Tonga]

Putt-Putt, on Mar 25 2008, 09:15 AM, said:

Oh one last thing. When I started riding bikes Triumph's - BSA's etc. We used straight 50w. Then when they came out with 20w/50 oil been using it ever since; 38 bikes later so far not a oil related problem.with any of them. Still run 20w/50 in the BMW & Virago.

Yes, I can remember using 20w50 oil as well. The only reason I changed was because of an article were they measured oil temps on the same bike same day with both 20/50 and 10/40 oil. They found the 10w40 ran cooler by 35 degrees. Plain bearings were to blame as I remember the article sayingthe 20w took longer to pass and the fricton created heat. Now this might also be true with 5w and 10w oils but I prefer the 10w for the gearbox.

[Putt-Putt]

You can also get Shell Rotella T syn. at Farm & Fleet stores, if you have any of them close to you.