Me too?So I have an 06 and the manual says 5w-20. It sounds like 5w-30 would be better for my engine. I live in Colorado so its between -15 and 100 in the summer. Any thoughts.Thanks!

Hi all:I want to start on my fluid replacments on my '06 Expy with 23k miles on it. I like to get the first trany change in early because I have found there is alot of metal in there before the first 40k. Anyway, the question is...the trany fluid in the trany pan doesn't co-mingle with the...