5w-20 motor oil : who's using it ? ...

[SilverGlow]

Originally Posted by 1stToyota

You're not still using the 0w-20 that is not SPEC'D for our Yaris 1.5L, are you, just because you found that viscosity listed in that Toyota TSB that you found...if you read it clearly the 0w20 is for the 1.8L, not the Yaris 1.5L
The engine damage isn't a fair trade for a little extra mpg.

5w-20 yes, 0w-20 no

Read the web sites of Mobil1, Pennzoil Platinum, and all the major brands that make 20 weight oil, and even read the labels on their bottles:

"0w-20 wieght oils can be used in any application that calls for 5W-20 weight".

At operational temperature, BOTH 0w-20 and 5w-20 provide the EXACT SAME viscosity. How come you don't understand this?

And where is the engine damage you write of when using 0w-20? MANY UOA's show there is no more wear then if 5w-20 were used.

It seems you have the habit of talking out your a$$. ;-)