i use mobil clean 5000 in the ion...it runs exceptionally well and is awesome especially when the gf decides to run it over the 3k interval
i usually use mobil 1 products in all my fun cars. the green camaro got nothing but m1 5w30 and ran beautiful on it. the trans am i have now came to me with m1 and i made the switch to royal purple 10w30. i gotta say im not liking the royal purple as much as when i had the m1 in it. it was awesome for the first few weeks but found it breaksdown with a lot of hard running. im making the switch to amsoil to try that out.
i hear josh might have some
btw....nothing but ac delco filters