Costco or Sam's Club Gas?

[landrovered]

All unleaded gasoline comes out of the same source whether from a pipeline (like Plantation and Colonial in the South) or a barge (Coastal locations such as NYC and the Eastern Seaboard) or train or other delivery method.

What differs is the additive package, octane boosters and oxygenates which are added to RBOB in order to make "Gas with Techron" or "nitrogen enriched fuels" or whatever the oil companies are peddling to differentiate themselves from the competition.

So gas is gas, over time the additive package can make a difference. Costco and Sam's club are obviously reducing the cost in order to sell at a lower price and it is not just corporate philanthropy and pure volume I can assure you. Their gas likely contains less of an additive package.

I would not have any problem putting their gas in a Ferrari I just would not run my Ferrari on it for its whole life. I would buy some BP or name brand gas ever fourth or fifth tanks and you will be fine.