Thought I'd pass along some prices from WalMart for some popular conventional oils. I noticed today that Valvoline was the most expensive at $14.50 5qt. jug, Mobil 1 Clean 5000 was $12.00, Pennzoil 12.50, SuperTech $10.00 and Quakerstate Peak was $12.00, Castrol GTX was $14.00 I was surprised to see Valvoline as the most expensive. Not sure why, just was.
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