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Rating: 3 - Link to this Article 04-30-2008 Gas Quality View Webcam for 04-30-2008 6 COMMENTS
Pipeline Flow After hearing about how Speedway or Citgo gas stations have crappy gas one too many times, I decided to rant about how gas gets from incoming crude oil tankers to the gas pump. I found a great article describing the process, which confirms all gas to all Michigan stations flow out of the same pipeline. The only differences are what additives each company adds to the gas before it gets to your tank. Stations that only put the minimum detergent additives required by law into their gas are still feeding you the exact same base gasoline that every other station provides. So while your fuel system may not be cleaned as well by lower cost gasolines, your engine is still running on the same fuel no matter where you fill up. Adding a $10 fuel cleaner bottle once a month will get you the same end result as high additive gas for possibly less cost. This shouldn't be confused with octane of course, which is dictated by your vehicle. Putting 93 octane in a car that requires 87 is just wasting money (and gas) as your engine won't be able to take advantage of the higher compression the higher octane allows for. With that my rant is complete.
User Comments for 04-30-2008:
Yup this was also on Modern Marvels on the Discovery channel. In fact the special additives have very little effect on your vehicle. And if you don’t agree then you’re the same as the email scam people who think avoiding a certain gas station on a certain day to make them loose money actually works. stop your ignorance and quit buying Hummers! k done.
Stavos
I will continue to drive my 4x4, 5.7L Yukon, with big wheels, and extra stereo weight...as hard as possible, getting 10 gallons to the mile... :P
E1
Lesson learned oh great one!
juggernaut
That is great research oh great god of frustration. I am now more educated. Thanks
Excelcier
Trying to educate a Canadian is like trying to polish a turd. You just don't get anywhere.
MorlockPrime
"Premium" fuel at Speedway is only 92 octane which can cause knocking in forced induction cars that require high octane fuel... unless you reset the ecu to allow the engine to relearn A/F ratios and loose hp as a result. One of the additives in fuel is ethanol. Ethanol has a higher combustion temperature than gasoline. The more ethanol in the fuel, the higher the total combustion temp. In high boost setups, the last thing you want is higher EGTs. Sure, it's the same fuel from the pipeline, but the gas you buy at Speedway (don't know about Citgo) is crap because they add so much ethanol.
Duane

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