I can tell you that Mobil 1 will handle heat as good as any other synthetic on the market including Redline & Amsoil. Mobil doesn't fool around with 4-ball wear tests or other gimmicky bench tests. The quality of the oil speaks for itself which is why it's so popular in racing. http://www.mobiloil.com/USA-English/MotorOil/Synthetics/Mobil_1_Proven_Superiority.aspx
Originally Posted By: lazaro
Were competitive brands included in testing of the Mobil High Endurance Motor Oil line? If so, which brands and how did they perform compare to the Mobil products? We do not cite competitive brands that we test against. This line-up has set a new standard in oil change intervals. We can assure you that the products were tested against quality products that are representative of branded competition.
Originally Posted By: buster
Mobil 1 10w30 or 0w40. http://www.mobiloil.com/USA-English/MotorOil/Synthetics/Mobil_1_Heat_Protection.aspx 1,500F