Hey everyone, I've been reading the posts and notice that several times it is noted that running high octane gas in a high milege, non-n20 2g dsm can damage the engine. What's the story with this? It's never completely explained. Also, does anyone know of anyplace online that sells the chrome valve covers? Thanks for the help.

1996 Mitsubishi Eclipse RS - Sold
1992 Eagle Talon TSI AWD
1999 Dodge Ram 2500 4x4