Detergents in gasoline are hardly "snake oil". You don't have to take my word for it: GM, Toyota, Mercedes and several other manufacturers say so, which is why the Top Tier spec exists.
Here in Motown, Marathon also supplies much of the gas sold by many different brands. There's a Marathon refinery down in Detroit, so it makes sense. But that is not to say that the gas you buy at a Marathon or Speedway (owned by Marathon) station is the same as that sold by other brands that may actually come from the same refinery. Each brand has its own additive mix. Shell, BP and Mobil all have Top Tier-certified fuel. Marathon and Speedway do not. Why would Marathon bother adding detergents to their fuel beyond the minimum required by the EPA?
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Today's Featured Article - The 8N and the Fox - by Zane Sherman. Dec. 13 1998, Renfroe, Alabama. Last niht I dreamed about the day that I plowed the field of about 10 acres over on what Jimmy and Dandy called the Ledbetter field. I was driving the 1948 8N Ford tractor that Jimmy bought in 48 new This was prebably in about 1951 and maybe even befor the house was built. This would have made me to be about16 years old and I drove the tractor for nothing and would have paid to drive it if I had had any money which I didn't, but neit
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