just picked up a 5qt of the Penn high mileage at WM for 10.50....so with the rebate it is 10 cents per qt. man, i thought 1 dollar/qt was good.....that is, if they ever send the rabate---still waiting of the WM $15 gift card.
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95 Accord 4cyl Vtec. 364K miles
Supertech 10w-30, PYB 10w-30, M1 EP 10w-30
2005 Durango 4.7 143K miles
PP 5w-30 now M1 EP