Top tier gas is worth the extra cost, per a study by aaa Given all of that, my question is, is there any reason to think that shell or exxon regular 87 octane is better, or has a better additive package than say regular 87 gas from qt, costco, citgo, and other top tier fuels? Cr lists car brands that recommend top tier gasoline and gas stations where you can buy top tier gas.
What Is Top Tier Gas (And How To Know Which Brands Are Top Tier Approved)
Top tier gas is worth tracking down, as it has a number of benefits for your engine that will help keep it running smoothly and increase its longevity.
Ranking the best gas station brands for fuel quality based on fuel formulations, testing standards, and industry certifications, here’s how major gas station brands rank for fuel quality in 2025
I further understand that shell and exxon are top tier fuels
