The more I read about oil[brands,syn vs dino,weights,etc] the more confused I get! After reading all I can about oil and not interested in extended oil drains, I don't really think it matters much which oil I use. If a person is going to change oil every 3000 miles max under normal driving conditions, I don't think there is much difference in which oil I choose[M1, Amsoil,Redline, or even dino].My X father in Law always used the cheapest oil he could buy from Walmart for his new cars. He changed oil/filter every 2000 miles[old days] and drove his cars 100,000 miles and they never used any oil! I love to polish my vette and change oil! I would hate to only change my oil every 6-7000 miles! Couldn't stand it!! I've got to polish it once a month too!