I was on the LS1.com forum and found this quite amusing. This is how rumors get started and from this, many stupid questions arise.
quote:[ August 19, 2003, 09:15 PM: Message edited by: buster ]
Last month local SCCA meeting had a guest speaker from a local race engine builder. A length discussion came up about oil and after pretty extensive testing they have found that Mobil 1 heats up even more than some conventional oils. Pressure drops have occured at high RPM's also. Not to mention oil burn off and poor flow characteristics compared to other oils. They recommended Amsoil, Royal Purpel, or Redline. Or for a conventional oil Valvoline racing oil. Also something worth noting for you highly modified engine guys is that after becoming fuel saturated Mobil 1 was one of the worst oils even compared to other conventional oils. I know of 3 engines in autocross cars that have blown. They were all using Mobil 1. One of those engines was mine What will I use in the new motor? Valvoline racing in 10w30 this year. After some miles I will be using Redline next year. Another interesting tidbit is that these guys have put TONS of passes on an 1,800 hp motor using 0W10 synthetic Royal Purpel. With VERY little bearing wear.