Hi and sorry if this topic has already been discussed but i did try a search and found no answers, I have a 96 ford ranger with the 2.3 lima engine its an all iron engine. owners manual calls for 5w30 oil and thats what i have in there now. previously i have run 0w30 amsoil and it seemed to work great but i went to mobils web site and they recommended their 5w20 i know a lot of the new fords run that weight but is that good in mine as well? I would like to hear if anyone has had a good experience with oil for this engine. thanks in advance