re: “Name brand” gasoline

quote:

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The ONLY contribution I have is don't get hung up on an Octane number. Use the fuel that your vehicle manual suggests using......there is a reason when they say use a certain grade.

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If you look, an Infiniti and Nissan make the same larger SUV. Same motor. The Infiniti says to use Premium the Nissan, regular. They do this a the Infiniti gets 15 mpg, the Nissan, 14 mpg. Cars now, have a chip that adjusts the timing to keep it from knocking. Much of the same with Lexus and Toyota, all Lexus say to use Premium, all but two Toyota's use Regular unleaded.