At $2-3 a quart, the PP is a no brainer. Ordered two jugs.
My dealer uses Pennzoil Platinum 0w20 on all their Mazda's. Its what the dealer put in for our free oil change. I switched to the Mazda moly oil at $6.69 a quart to see what the fuss is about.
One thing I can confirm, there is no change in mileage, as some on here have claimed as high as a 5 mpg increase.
I can't speak to the Pennzoil Platinum, but I was getting a steady 27-28mpg on the factory fill (Mazda Moly Oil) and that dropped to 25-26mpg when my dealer used the Castrol Edge OE Professional for the 1st oil change. I insisted on the MMO for the 2nd oil change, and now I'm up to 28-29mpg. No change in driving habits or routine, and the car has always had Shell gasoline from day 1.
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