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 - Grain Threshing in the Early 40's - by Jerry D. Coleman. How many of you can sit there and say that you have plowed with a mule? Well I would say not many, but maybe a few. This story is about the day my Grandfather Brown (true name) decided along with my parents to purchase a new Ford tractor. It wasn't really new except to us. The year was about 1967 and my father found a good used Ford 601 tractor to use on the farm instead of "Bob", our old mule. Now my grandfather had had this mule since the mid 40's and he was getting some age on him. S
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