So far, 52 retail brands meet the Top Tier standard, meaning there’s likely one near you. All gas is free from organometallic additives like Ferrocene or MMT.All gas grades include a Top Tier approved detergent additive.
All retail locations meet the standards of the Top Tier program.Here is what you can expect with a Top Tier gas: If a station is branded as being Superior Quality, it means their gas has met a certain performance standard.
