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-   -   anyone using premium gas ? (http://www.focusfanatics.com/forum/showthread.php?t=274381)

sonic blue 12 12-03-2011 05:45 PM

anyone using premium gas ?
 
yes or not worth it

Fuzzy Logic 12-03-2011 05:49 PM

I got the focus so i wouldn't have to use premium. [histerical]

VOLDAR 12-03-2011 05:51 PM

Not worth it if you are looking to improve your mpg, but it is worth if you use it from time to time to "clean" the injection system (injectors, valves, combustion chamber, etc).
I say this because I used it twice and the result in mpg was not better than what I had with regular. I will use it from time to time though (for maintenance purpose).

BetaDnB 12-03-2011 06:06 PM

I use premium because it says right in the manual "premium fuel will provide improved performance" (pg. 354 (2nd printing)). Plus my station two blocks away from home has ethanol free premium.

motleysalty 12-03-2011 06:11 PM

I have gone back and forth between grades (3 tanks reg, 3 tanks premium, s tanks reg, etc) and have actually noticed a mileage difference with the premium. Not huge by any means, 1-1.5 L/100km, but still a difference. I think that works out to 2-3 us mpg roughly.

BowerR64 12-03-2011 06:26 PM

I use to think that gas was just gas but not any more. Now that i know more about it and how it works it makes sense and now i get it.

I use to get quick trip gas because i thought since it gets more buisness it would have the fresh fuel but after a few data logs ive decided im not going buy from them any more. I tried a tone of different fuels and finally found a fuel my car likes and ive been running it for a few months now.

This is what bad gas looks
http://i5.photobucket.com/albums/y19...ly1datalog.jpg

And this is what the gas im using now looks like
http://i5.photobucket.com/albums/y19...4/Datalog1.jpg

With bad gas you rknock sensor detects knock and retards your timming. Good gas you can really wind the timming up with no knock and it improves performance.

IMO its worth the extra money. You can do your own testing but ill bet you will come to the same conclusion. You may not really feel it but you can see with the datalogging what it is actually doing.

Salonious 12-03-2011 07:22 PM

I'll pay the .06 extra for the 100% pure stuff. I spent the last 5yrs feeding my 06 Charger R/T premium fuel. Never again if I don't haft to.

Ghost71 12-03-2011 07:59 PM

I noticed a diffrence using 93 opposed to 87. Gained some extra mileage. I have a post somewhere. Lol

YoteMobile 12-03-2011 08:17 PM

This also brings up the question..which brand of gas is better? Do you find that different brands are better than others? So far from my findings I get the best fuel mileage if I stick with Shell Regular. Chevron/Texaco second. If I go with any other brand, my gas mileage seems to go down a little.

I also bought the Focus so I didn't have to burn mid grade or premium gas. My previous car (2002 Jetta) ran sluggish if it burned regular.

VOLDAR 12-03-2011 08:26 PM

I find it interesting reading this : http://www.cartalk.com/content/premium-vs-regular-1


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