R
Rufus1050
Guest
I'm new to the C5 forums as I just brought mine home today. Two important questions that I'd like some input on. The LS1 calls for premium fuel...down in La we don't have Sunoco so between the other brands ie Conoco, Shell, Chevron, Exxon, Phillips 66, Citgo or Texaco, what is the preferred brand from other C5 owners. While we're at the oil put in at the factory is Mobil 1. Do all C5 owners stick with this brand or has anyone had any sucess with other comparable brands such as Pennsoil, Valvoline, etc? I want to do the best for my new 97 with 74000 miles. Thanks for any advice on these two important issues. Rufus