Originally posted by Big Jim:

There are those that argue that Ford only did this to improve their CAFE (corporate average fuel economy) ratings. I won't enter that debate. It is significant that the 5W20 has proven to be an excellent oil.




Originally posted by BrApple:


also I thought part of the 5w-20 change was the fact that Ford could claim beter fuel milage on the highway. since as you know they have to sell a certain number of "clean" cars from an emmisions stand point to be able to sell all those SUVs and trucks that are not as "clean"


Ryan Trollin!