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Old 05-23-2005, 11:38 PM   #21
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You guys really see a difference going to certain brands? I was brand specific for a while and then was burning so much that I just got it wherever was available. Now I'm about the best price.... but I'm running premium.
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Old 05-23-2005, 11:41 PM   #22
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Quote:
Originally Posted by rixak
There'* one Mobil station whose gas I get about 4-5 mpg more on. Mobil and Meijer have proven to have good suppliers and tank upkeep across the state of Michigan.

Citgos are usually pretty good, except the one in Ubly, MI. That gas doesn't light on fire if you spill it on the ground! I had a weed wacker die while trying to use that junk. Put in some decent gas, and it fired back up.

Haven't tried Shell much, so nothing good or bad to say there. I know a few little no-name stations that have gas better than any major company can offer. Too bad they're in the middle of nowhere.

There'* a Marathon across from what used to be Amoco and is now BP that is always at LEAST 10 cents lower than anywhere else within 25 miles. Quality of gas is pretty ehhh, but you can't really beat a deal like that. It'* the only Marathon I've been to.

Will shop anywhere but at Speedway or Sunoco. I hate the alcohol blend at Speedway. my 90 GMC C1500 went from 25mpg to about 17 on a tank of that. Ewwww. I've gotten some watered down crap from Sunoco, especially in Ubly, MI. Had to burn it out of my tank PDQ because my car ran like I do with my bum knee The occasional Amoco station has sucked majorly, too.

I run 87 because I'm a poor college student, and I get 28mpg if I drive nicely, 22 if I use the supercharger for a little fun. I did fill up with some 89 the other day since I almost ran completely out That'* pretty close with the 32mpg I get in my Cavalier. I'll take the comfort and lower mileage any day

My $0.02. Can't tell I drive around Michigan a lot, eh?

uh ohhhh...
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Old 05-23-2005, 11:43 PM   #23
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Not so much a brand difference. If more than one station uses the same supplier, they're likely to both have good gas. There are other factors, though, but I don't know specifics.

For example, the two stations in Ubly I mentioned before are owned by the same family, and they use the same supplier. Both have horrible quality gas and diesel. Go 15 miles north or ~30 west to the same brand stations, and their gas is noticably better.
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Old 05-23-2005, 11:43 PM   #24
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i have noticed that our family cars tend not to like some other brands of gas. chevron is one prime offender, plagueing our cars with pinging and fussing until we get rid of the stuff.
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Old 05-23-2005, 11:45 PM   #25
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Interesting. Probably most around here have the same supplier because there'* so many of them silly stations...
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Old 05-24-2005, 01:26 AM   #26
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Quote:
Originally Posted by BillBost37
Interesting. Probably most around here have the same supplier because there'* so many of them silly stations...
Same supplier doesn't mean the same blends.

I've gotten best MPG on BP.
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Old 05-24-2005, 01:41 AM   #27
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I can't afford 93, and there'* no 94 in my neck o' the woods. I almost always use 90 octane in my baby Northstar, occasionally 89, and rarely 87 (but it has happened ). I've been buying it at at FS station, Citgo, Qik 'n EZ (a convenience store chain in IL), or the Walmart gas pumps. Citgo and Walmart give you 3 cents off every gallon if you pay with a shopping card!
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Old 05-24-2005, 01:53 AM   #28
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me and mom only use EXXON in our cars. and i can tell when she cheats and uses walmart because her car runs like crap!!
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Old 05-24-2005, 03:17 AM   #29
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I stop by Conoco and usually get 89. They have 87, 89, 91, 94, and 110. Only place I've seen with those many different options.
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Old 05-24-2005, 06:01 AM   #30
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Quote:
Originally Posted by 94SSEgold
me and mom only use EXXON in our cars. and i can tell when she cheats and uses walmart because her car runs like crap!!
It takes most PCM'* 150-200 miles to adjust the computer settings, so the engine will run efficiently on any given type of fuel. You'll often notice an initial decrease in performance when you change fuel brands/grades, but it generally should clear up after a half tank or so.
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