oil grade..

[dindy]

still different reasons so far.....i had read about mineral vs sythetic......anyway. my haynes book about yaris it tells me to fill 0w30 or 5w30....which for my country in summer i think is too thin, cause of very high temperatures, still on the cap of my car, i doesnt says what oil should i give.

[racerb]

Originally Posted by dindy

still different reasons so far.....i had read about mineral vs sythetic......anyway. my haynes book about yaris it tells me to fill 0w30 or 5w30....which for my country in summer i think is too thin, cause of very high temperatures, still on the cap of my car, i doesnt says what oil should i give.

I used to be an Amsoil Dealer and if the owners manual has a chart showing recommendations, go by that, it is what they test their engines with. I run 5w-30 synthetic in Yaris and 10w-30 synthetic in my Tundra, changing it out around 7,500 miles, but the real key is to use the best filter possible! After seeing some recent filter cut-away tests, the Toyota OEM is your best choice, but K&N and Royal Purple make a great filter also, just more expensive than OEM.

racerb

[WeeYari]

Originally Posted by dindy

still different reasons so far....

That is because there is no definitive answer. Most veterans of this forum roll their eyes whenever yet another oil question is raised and move on. Hence the reason this post is only the 7th reply.