Posted: Oct 11 2015 at 11:30am | IP Logged

lakota wrote: .. I think why they call for the light weight oil is to get a better mandated fuel mileage rating from the EPA. The Toyota dealer has been putting in 0w20 in our '08 Camry since it was new and it hasn't rattled yet. It's scary but they have to warrantee the dang things! Have a good one if you can find one.. Don S..

Lakota,

0w20 is scary indeed, for me at least, especially in Texas, where it get's so hot.

I do think that the Thinner 5w30 flow's faster and make's sense that it would help with the Gas Mileage.

So far with the 5w30, my SV V6 is Averageing 20.6 mpg, so I'm very pleased with that.

I've also read where the Fronter V6's on 5w30 are going past 300K mile's.  I may go to 10w30 at some point, but for now, 5w30 Castrol GTX is getting the nod.