Quote:
Originally Posted by Bruceg0028
I heard many criticisms on the new Costco and why you shouldn’t join the club.
…Most car manufacturers say not to use Non Top Tier fuel in your vehicle…
I have found my gas mileage is significantly reduced when filling up at BJ’s and Sam’s…
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I don’t doubt that you had a wild mileage swing on a trip.
I couldn’t find any auto manufacturers that say to avoid Top Tier gas. Most recommend it.
BJ’s and Sam’s are not Top Tier gas. Costco and Mobil are. Chevron, Sunoco and Exxon are. Circle K is not.
One cannot easily get Top Tier 93 octane North of Missouri. However, my car runs great on 91 octane with no Ethanol.