Originally Posted By: Peter_Pan
Originally Posted By: GMBoy
I only know of Ford and Honda recommending 20wt oils. (I may be wrong).
You are.
Mitsubishi, Chrysler and Toyota are recommending 5W-20 in most (if not all) of their most popular 4 cylinder engines now for a few years. Together with Honda and Ford this is more than half of the cars on the road today with a factory fill of 5W-20.
No he ain't
Simply because the same manufacturer will recommend SAE 30 or 40 oils in similar climates on the other side of the puddle. Therefore it does seem to be a"tool". Moreover, some manufacturers who do allow SAE30 oils will do so under the condition that the vehicle is not to be operated at high speeds and heavy loads over extended periods of time.
That said there are applications for SAE 20 oils but the rest of the world does not seem to be joining the trend (in EU it's considered to be a niche product) and down under I bet they use it to lubricate door locks.
Have to admit that I am trying 5W-20 in my Acura CL I will give it 500-600 km more on top of 1000 I already put on it and out it goes, I will change it out with Elf Excelium LDX 5W-40.