Originally Posted by oldhp
Well after reading that confirms what I was thinking anyway.
4qts 5W30+3qts 5W20=5W25. Thats what I was going to try.
I think I'll dump in 7qts 5W30 and see what happens. I don't think anything will happen. We'll see. The oil of choice is NAPA synthetic.
I don't see any real problems outside of the chance you'll get a code for the wrong grade engine oil or MDS function.