this post was submitted on 13 Oct 2023
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Cheap gas ain't good gas anyway. You end up paying for it later in lost fuel efficiency.
You can buy Top Tier now, or you can buy a bottle of polyetheramine later.
Edit to add: this is about the type and quantity of detergent pack, not about the octane/grade. Brands are required to have 2x the EPA mandated minimum detergent in all grades and at all locations to carry the Top Tier logo.
Costco carries it. So the generalization of cheap = bad does not always hold. But it very often will.
Can you cite any evidence that lower tier gas gives worse MPG?
Lower octane gas definitely gives you less power. The owner's manual for my car gives two different horsepower ratings for different octane gasoline.
Lower octane is not lower tiered. Lower tiered is buying gas at Kroger or Costco vs Shell
Ironically Costco is a certified Top Tier brand.
https://www.toptiergas.com/gasoline-brands/
That's interesting to know.