RE: What type of Gas?
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RE: What type of Gas? - 9/13/2006 6:50:25 PM
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thetryal
Posts: 85
Joined: 8/13/2006
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i filled up with albertsons gas before i left for my 200 mile trip this weekend and got 21.6 mpg. when i filled up on my way back i used shell gas. on the way home i got 24 mpg. the weather was about the same and i drove roughly 75 the whole way down and the whole way back. i reset the trip, mpg and the avg speed both times. this kind of makes me want to buy shell gas from now on. just thought id share.
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01 a6 2.7t quattro tip, APR fully loaded ECU, window recode, valentine 1, k&n, clear corners, limo tint...more to come
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RE: What type of Gas? - 9/13/2006 8:00:49 PM
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prbayha
Posts: 505
Joined: 6/30/2006
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Personal preference aside. I own a 4.2 and the manual says premium fuel 89 octane or higher. I live in Seattle, which is at sea level and 89 is the mid grade and 92 is premium. I believe that 87 won't hurt your car but the engineers at AUDI obviuosly mad the recommendation for a reason. I use 92 and have experience no problems. Now, with a change of altitude there will be a difference in Octane and the computer will compensate. Spending time in Colorado, I noticed a difference when using thier Octane Ratings. After a couple of fill-ups I didnt notice the lag in performance any longer....My .02 cents says stick with the manufacturers rating and for peace of mind I agree with Southboroaudiguy...The little more you pay for premium will help your motor and your mind. BTW--Chevron is the best Gas around in my area..I only use this gas and never had a problem with any of my cars.
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2001 Audi A6 4.2 Sport - Silver
2004 Lexus IS 300 SD - Black
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RE: What type of Gas? - 9/13/2006 9:21:03 PM
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vnv727
Posts: 6085
Joined: 8/9/2005
From: New York
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wow did you even read his post....he wasnt asking if he should/can use pemium, he was asking to different brands give better or higher number of miles per gallon.......some gas contain more detergants to keep your system clean and some may run slightly better in Your specific car.....its like finding the right ammo for your gun...the same model gun may fire the same ammo differntly u have tofind what works best.....if you really care about the 1 or 2 mpg difference id say use one brand for 1500 miles, then another and keep using only the same octane rating....that way all the little differences in driving will even out over 1500 miles....if your up to it let us know what you find in 6000 miles...that is assuming you try 4 different brands
peace out
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RE: What type of Gas? - 10/7/2006 8:40:54 PM
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gpz
Posts: 52
Joined: 4/22/2006
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quote:
ORIGINAL: thetryal
i filled up with albertsons gas before i left for my 200 mile trip this weekend and got 21.6 mpg. when i filled up on my way back i used shell gas. on the way home i got 24 mpg. the weather was about the same and i drove roughly 75 the whole way down and the whole way back. i reset the trip, mpg and the avg speed both times. this kind of makes me want to buy shell gas from now on. just thought id share.
Interesting. I have also always had good luck with Shell gas, as I have never found water in it. In the past when I used to race my dirt bike I use to take samples of gas from various stations around where I live and tested for water. You put some in a glass jar in a dark place over night and look for seperation. The worst gas for water I've ever found was at Arco. I never buy Exxon gas for political reasons (Yes, that's right, Exxon Valdez... I have a very long memory, and I have personally seen the environmental damage they were responsible for). I once found water in Chevron gas, but that station was kind of sketchy anyway, and if memory serves they had to dig their single walled tanks out of the ground and soon went out of business.
I'm not sure that 200 miles is an adequately long test. It is just over two hundred miles from my house in eastern Washington to Seattle. I live at about 430 feet above sea level, and for some reason, it always seems like I get better milage coming back home from Seattle (essentially at sea level) than I get going there. Maybe it is because the western side of Snoqualmie Pass is steeper than the eastern side, so I'm climbing for longer going there and coasting more coming home... in any case, elevation changes make a huge difference in gas milage, as does prevailing wind directions.
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