Just switched to Amsoil

[keesue]

I don't want to start a fight with SilverGlow over education. I know how important that is to him given his references to it in just about every other post. I suspect he thinks his penis is larger than everyone else's, and insulting people is an affirmation of that. I think it is a rather emotionally immature way of participating on this forum, and may indicate that penis size is really penis envy?

For the record, I am a CIO of a global technology organization and engineering rigor is my stock in trade. My educational credentials are not really relevant to my question. I was really curious if others saw any difference (anecdotal experience versus an engineering exercise) in op temps using synthetic versus 'dyno' oil in the Yaris . I've used AMSOIL in my TurboVolvo which did show a reduction in op temps in the cruising range as well as the maximum range; meaning, when the ambient temp is HOT with *ahem* 'spirited' driving on the road.

My suspicion is that with the Yaris, there isn't much of a difference, meaning it may suggest it is running just fine with 'dyno' oil.

Many thanks, fellas, for the input to the thread thus far!