I have always ran rotella T 15w-40 in my Cummins 12 valve. I have recently read about countless people using it in their Subaru WRX's and other gasoline engines with great success, and also reading about folks using it in motorcycles and atv's with wet clutches that run in the engine oil. So, I have decided to start running it in my 2002 Subaru WRX, and also in my 2008 Yamaha grizzly 700 ATV. I read that it was JASO certified and is excellent for motorcycle/atv engines.
Does anyone think this is a good or bad idea? And if so, exactly why? Keep in mind I am not concerned about damaging my catalytic convertor, so I don't want to talk about that or fuel mileage. I am concerned with wear protection, and engine protection for longevity, not mileage and saving my convertors.
I get the impression that automotive SM rated oils are [censored] compared to rotella, in terms of engine protection. Is this true as a general rule of thumb?
And since I am trying to draw conclusions on which oil's offer better wear protection, what is the best tools (or method) to do that? Should I look at the oil contents to compare oils? More ZDDP etc? Or should I look at oil analysis' of different oils? What is the best way to determine the better oil for me? I want oil that offers the best protection, not the best mileage, not the safest for the environment, etc. I am not out to please Al Gore of fill his pockets, just protect my engine.
Thank you!
Joe
Does anyone think this is a good or bad idea? And if so, exactly why? Keep in mind I am not concerned about damaging my catalytic convertor, so I don't want to talk about that or fuel mileage. I am concerned with wear protection, and engine protection for longevity, not mileage and saving my convertors.
I get the impression that automotive SM rated oils are [censored] compared to rotella, in terms of engine protection. Is this true as a general rule of thumb?
And since I am trying to draw conclusions on which oil's offer better wear protection, what is the best tools (or method) to do that? Should I look at the oil contents to compare oils? More ZDDP etc? Or should I look at oil analysis' of different oils? What is the best way to determine the better oil for me? I want oil that offers the best protection, not the best mileage, not the safest for the environment, etc. I am not out to please Al Gore of fill his pockets, just protect my engine.
Thank you!
Joe