Originally Posted By: Max_Wander
For a Yaris, you'd be fine with good ol' classical mineral oil; the little 1NZ isn't very hard on oil at all IMO.
I've been using GTX 5w-30 with approx 3,500k OCI's at 6 months
I'm an apartment dweller, so I rely on quick change oil places.
In my neighborhood I can get a Penzoil Platinum oil change, but it comes with a FRAM filter.
Is it worth it? Or, should I stick will a place that offers dino changes and other brands of filters?
There was supposedly a TSB issued suggesting 5w-20 in my 07 Yaris LB as opposed to the 5w-30 listed in the owner's manual.
If I change, and go synthetic M1 or PP will I see an increase in mpg?
I don't see that significant of a difference in real world reporting between the 4 cylinder Malibu and the 3.5l Impala.
As a matter of fact I regular read reports of 3.5 owners beating the EPA estimates.
I'm surpised at the real world gas mileage numbers I've read on the Impala.
The 3.5 V6 competes favorably with many 4 cylinders including Camry/Accord/Altima.