My mileage with the 4.6 4WD '05 F-150 has averaged between 16-18 mpg. I usually use Shell, but have been using Sunoco for the last 2 tankfuls. Today, when I filled up (back to Shell) I check my mpg, and found that with Sunoco I dropped to almost 14mpg. The companies tell you all gas is the same, but I feel this proves different. How about you?

 

most of the time i use Hess....or getty if i need gas bad

 

What's ever cheapest at the time! I see no difference in mileage.

 

I too notice a difference in MPG depending on which stations I use. With my 99 Explorer and 02 F150 I only used BP/Amoco fuels, as this gave me the best performance (seat of pants feel anyways) and MPG. They have since removed all BP/Amoco from the Denver Metro area, so with my 06 F150 I now only use Shell fuels, as they provide the 2nd best MPG and performance (again seat of my pants feel) that I have noticed. Too bad they don't have BP/Amoco here anymore, as my 06 F150 gas cap states Ford recommends BP/Amoco.

I will use Conoco/Phillips 66 fuels if need be, but will drive out of my way to get Shell fuels. I do notice a slight decrease in MPG when I use Conoco/Phillips 66, but it's not too drastic. Now I have always avoided 7-Eleven, Circle K, Diamond Shamrock, AM/PM, Sooper Market and any small time establishment fuels. Now I do wish we had Mobil/Exxon fuels here in CO, just to test. My wife and mother always purchase the cheapest fuels they can find, but then end up complaining that they get a lot worse MPG.

 

a lot of people say that the only reason that ford recommends bp fuel is because they are paying ford to advertise them...so they get more profit from people using their fuels.....i dont think it makes any difference at all.....but then again i dont have the newer f-150 to try to see if it actually makes a difference

 

I will say that with my 99 Explorer and 02 F150, BP/Amoco was the best fuel I could find for them. Ford may do this for advertising, but after purchasing both vehicles I shopped around for the best gas I could put in them. I found that while Shell & BP/Amoco gave about the same MPG these vehicles did seem to perform better using the BP/Amoco brand.

This may or may not be factually true (performance difference), but I did like the way the trucks ran with BP/Amoco over Shell. It felt like I had to give a little more throttle with the Shell than the BP/Amoco.

Just my experience.

 

"4.12 Are brands different?
Yes. The above specifications are intended to ensure minimal quality standards are maintained, however as well as the fuel hydrocarbons, the manufacturers add their own special ingredients to provide additional benefits. A quality gasoline additive package would include:-

octane-enhancing additives (improve octane ratings)
anti-oxidants (inhibit gum formation, improve stability)
metal deactivators (inhibit gum formation, improve stability)
deposit modifiers (reduce deposits, spark-plug fouling and preignition)
surfactants (prevent icing, improve vaporisation, inhibit deposits, reduce NOx emissions)
freezing point depressants (prevent icing)
corrosion inhibitors (prevent gasoline corroding storage tanks)
dyes (product colour for safety or regulatory purposes).
During the 1980s significant problems with deposits accumulating on intake valve surfaces occurred as new fuel injection systems were introduced. These intake valve deposits (IVD) were different than the injector deposits, in part because the valve can reach 300C. Engine design changes that prevent deposits usually consist of ensuring the valve is flushed with liquid gasoline, and provision of adequate valve rotation. Gasoline factors that cause deposits are the presence of alcohols or olefins [46]. Gasoline manufacturers now routinely use additives that prevent IVD and also maintain the cleanliness of injectors. These usually include a surfactant and light oil to maintain the wetting of important surfaces. Intake valve deposits have also been shown to have significant adverse effects on emissions [47], and deposit control additives will be required to both reduce emissions and provide clean engine operation [48]. A slighty more detailed description of additives is provided in Section 9.1.

Texaco demonstrated that a well-formulated package could improve fuel economy, reduce NOx emissions, and restore engine performance because, as well as the traditional liquid-phase deposit removal, some additives can work in the vapour phase to remove existing engine deposits without adversely affecting performance (as happens when water is poured into a running engine to remove carbon deposits :-))[49]. Chevron have also published data on the effectiveness of their additives [50], and successfully litigated to get Texaco to modify some of their claims [51]. Most suppliers of quality gasolines will formulate similar additives into their products, and cheaper product lines are less likely to have such additives added. As different brands of gasoline use different additives and oxygenates, it is probable that important fuel parameters, such as octane distribution, are slightly different, even though the pump octane ratings are the same.

So, if you know your car is well-tuned, and in good condition, but the driveability is pathetic on the correct octane, try another brand. Remember that the composition will change with the season, so if you lose driveability, try yet another brand. As various Clean Air Act changes are introduced over the next few years, gasoline will continue to change."

Everything you wanted to knowabout gasoline:
http://www.petrolgauge.com/docs/faq.htm

 

i usually use whatever is cheapest, although if the gas is really cheap and the gas station looks kinda shady ill go somewhere else... but normally the gas station that is about 3 miles away from my house usually has the cheapest gas and i always fill up there, plus i know the owner....too bad he cant give me a free gas card or something...believe me i've asked...

-Matt

 

I Try To Only Use Bp Fuels Seem To Get Best Milage And Performance.
Stay Away From Holiday Stations Heard Horor Stories Of That Stuff.

 

I use Texaco/Chevron. My truck used to have a slight lifter noise when cold....I switched to Chevron and within ~ 5 tanks the noise went away....must of been some carbon build up. Chevron's Techron additive seems to be a good product.

FYI: Chevron bought Texaco and as of July 2006 Texaco gas stations sell Chevron gas only.

 

I've bought gas based on price for over 40 years. I do buy at stations that pump a lot of product. Most of the gas comes out of the same tank or at least through the same pipeline. Go to a tank farm and look at the many different brands getting their gas from the same hose. I have a friend who delivers gas to several different brand stations and they all get the same thing.

I think it is the placebo effect.

 

I use whatever is the cheapest as long as the station I get it from has a high volume of customers.

My mileage is the same no matter where I get my gas....

 

I guess this would be a quick easy google search, but I just don't have the time. I thought Shell had bought out Texaco a few years ago. My wife worked for Texaco at the time that they switched all the stations over to Shell and she had to change all here work papers from Texaco to Shell. Also, the Shell stations here in Colorado still sell Shell gasoline, not Chevron. Recently all the Shell stations here in Colorado have switched to a Shell/Circle K combo store, with both the Shell and Circle K logos. Anybody know what's going on?

 

I get it where ever it's the cheapest. My gas mileage sucks just as bad regardless of the brand. But i'm not really concerned about the mileage anyway, it is a truck. I NEVER use Sunoco gasoline, reagardless of price. Well there was one time, but there was not other gas for about 20 miles, and I didn't want to drive that far.

 

I've bought gas based on price for over 40 years. I do buy at stations that pump a lot of product. Most of the gas comes out of the same tank or at least through the same pipeline. Go to a tank farm and look at the many different brands getting their gas from the same hose. I have a friend who delivers gas to several different brand stations and they all get the same thing.
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Sorry but that article above is true. The gas comes from the same pipeline refined, then the different brands take it and add there own additive packages. This is a fact. The article above wasn't made up. I have relitives that work for gas companies and they have said the same thing. So if your worried about the carbon deposits in the combustion chamber and causing the spark plugs to break off on the 5.4, I would be running only the big brand quality fuels that are called top tier.