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ras_1974 t1_izes2lk wrote

I haven't purchased gulf gas since the late 70's because of engine knocks after using it.

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mbz321 t1_izey0nn wrote

Lol. All gas in your region comes from the same exact refineries.

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CarbonGod t1_izf26tu wrote

and gas has changed quite a bit since the 70s. I mean...there is unleaded now!

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TheTemplarSaint OP t1_izeyhwh wrote

Sure does. They’ll Chuck in different additives for the different brands, but the actual gas is the same.

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homerj419 t1_izhd7tw wrote

But the tanks the stations hold them in aren't the same. Some have updated double walled fiberglass tanks others have outdated metal ones. Metal is corroded by the fill around the tank and also degrades overtime. Water and sediment enter and that's not good. And also as someone else mentioned additives from the separate fuel companies themselves and their methods of storage as well. Lots of variables

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