Anyone running Royal Purple?

[SilverGlow]

Originally Posted by 1stToyota

It states 5w-20 NOT 20 OR 0w-20




NO, you're drawing your own stupid conclusions again to alter their "5w-20" recommendation to fit into your straight 20 and 0w-20 needs for a southern Ca. climate condition that never needs 0w oil in the first place.



You don't need to worry about cold morning startups, you live in so. Ca. ...and film strength always plays a part in not wearing and tearing your internals. Not saying you'll blow your motor or make it drink oil, just saying that you're asking for trouble for using a viscosity that is NOT listed for the Yaris in the Toyota TSB...did you do a XD engine swap? Yes? Then that'd be okay...Yaris 1.5 still, not okay, according to the Toyota TSB that you like so much but can't comprehend.

ALL the oil brands that sell 0w-20 make the claim that that their oil is a great match for ANY 5w-20 application. AMSoil, Mobil1 and others make this claim.

And you are dead wrong about California and 0w weight oil. Anytime the ambient temperature is below 40F one will IN FACt benefit from 0w oil. You are also very foolish to think that it does not snow in California. It does in fact.

Film strength and viscosity have NOTHING to do with each other. And in fact, there are some 20 weights that provide film longer then heavier oils.

What you fail to understand is that 0w-20 and 5w-20 provide the SAME protection at full operational temperatures. The difference is during the first morning start of the cold day. And if a 5w is fine, then a 0w will be too. This is true according to AMSoil, and Mobil1 and ALL other makes that make 0W oils.

According to Toyota, 5w-20 can be used safely in a Yaris 1.5L engine. Now, that being true, one can ALSO use 0w-20, 0w-30 too for our Yaris engines, and this according to ALL the makers of 0w oils.

It is too bad you behave like you know more about oil then Toyota, AMSoil, and Mobil1.