They are mostly the same. I had M1 in my car for 80K, but sooner or later you're forced to use another brand when someone else does the oil. I'm running Valvoline SynPower(?) now.
Synthetics are useless after 50k miles? Naw bro. Whoever told you that don't know their oils/engines.<font face="Verdana, Arial" size="2">Originally posted by etherealude:
ehhhh forget! i'm not going for synthetic anymore, too much $$$ and my cars 60,000 miles+ anyways.. they said synthetic is useless after 50,000