Sorry, I thought you were saying that you were about to have them change it, instead of just buying it. Look over the jug from Wal-Mart and see if it's got the SAE Service stamp. I do belive that most warranty requirements have a double letter standard that has to be met. Mobil 1 says: "Exceeds API Service SJ, SH/CF warranty requirementsfor gasoline and diesel engines".
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 ...just CREWZIN along! ® . . . PT Cruiser Links Moderator 
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