Well just got set up on here now I will say a 75 Commander is vintage :-p and just starting out
as full time RV person (always wanted to travel but never had reason)What with getting apart from soon to be exwife. I now have reason. Anyway what type motor oil be best for a 75 440 Dodge motor? What with messed up back ect (disabled here) don't want to have to crawl all over it and really going to be tight money wise for bit till bills paid off. Mcome for a longtime going to be exceded by my outgo. So best ideas would be helpful