Re: What kind of gas to use
More stuff
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So, it is safe to assume that basically every local station sucks through the same straw from one giant milkshake? Only the flavors (additives) are different?
Yeah, with a caveat. Occasionally I'll see a batch in the pipeline tagged as "segregated", but we don't treat it any differently than the "fungible". I can't say for sure what everybody else does. It doesn't happen very often. If you really want to segregate a product, you need a dedicated tank, and that can get pretty spendy. We used to segregate some gas about 10 years ago, but I haven't seen it since then.
And the gas you get outside of the Willamette Valley from June to September is a bit different. Portland has stricter emission standards during the summer so the gas has to meet DEQ's criteria. It only affects the gas' emissions in a static state and doesn't affect the way it burns in your car.
So, yes, only the additives are different.
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If my understanding remains correct, all additives must meet the federal guidelines set forth for this particular item. I would like to compare it to generic drugs.....pay more for the name brand, but you can still kill the same back ache with the cheaper stuff.
Yep, but some additives are proprietary. I never bothered to check, but Techron might be a corporate secret. I work with a guy who used to work for Mobil's lube division, and he told me that Mobil 1's chemical composition is a closely guarded secret known only to a few of Exxon/Mobil's insiders.
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