Originally Posted by JOD
Originally Posted by Fallguy
I still suspect its all mostly just for CAFE but would like to hear from anyone with engine building experience/knowledge of the specs on the items above.
regards,
why is this discussion still going on? seriously, ford switch to 20 weight oils 20 years ago.
sure, better fuel economy was certainly a factor in the decision. So what?
Ford did have to switch back to a 5w30 on some of the engines.... .
Originally Posted by Fallguy
I still suspect its all mostly just for CAFE but would like to hear from anyone with engine building experience/knowledge of the specs on the items above.
regards,
why is this discussion still going on? seriously, ford switch to 20 weight oils 20 years ago.
sure, better fuel economy was certainly a factor in the decision. So what?
Ford did have to switch back to a 5w30 on some of the engines.... .