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Author Topic: Mileage difference by brand Back to Topics
Camry05

All-Star Author
Indiana

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Message Posted: Aug 28, 2013 7:56:47 AM

Has anyone noticed more or less mileage by using a different brand of gasoline, but the same octane level? I find that speedway gives less mileage than shell
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OceanArcher
Champion Author Mississippi

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Message Posted: Nov 29, 2013 10:41:57 AM

Maybe you could get mythbusters to do a presentation on this ...
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rick_evans
Champion Author Boston

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Message Posted: Nov 20, 2013 6:36:57 PM

I haven't, but I'm still waiting for that research grant to come through from the Department of Energy.
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GrizzlyRaptor
Sophomore Author Sacramento

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Message Posted: Oct 29, 2013 10:26:21 AM

Not really.
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contiki
Champion Author Ontario

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Message Posted: Oct 29, 2013 9:39:25 AM

no difference at all.......
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pghbill
Champion Author Pittsburgh

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Message Posted: Oct 28, 2013 11:09:21 PM

no difference
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JerryON
Rookie Author Hamilton

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Message Posted: Oct 26, 2013 3:34:32 PM

There are so many parameters that can affect your fuel economy it would make your head spin as far as air temp and humidity.

However, please know that most gas is all virtually the same based on the "regular blend". I don't know enough to make that claim for the higher octane "claim to fame blends".

Back many years ago I was a service tech and visited a couple of different refineries to service our welding machines during their shut down.

While in each refinery I noticed a host of many other brand tankers filling their tankers for local distribution: Shell, Texaco, BP, Gulf and a couple of others. I talked to a site supervisor and he said they do this often. There might be very subtle differences between any brand but for the most part they're all the same.

To go beyond to improve your gas mileage it's mostly common sense. You know, clean air filter plugs in good condition, tire inflation, tire alignment, oil changes, belts and hoses and a host of other things. Good driving habits is probably your most important asset when trying to obtain a better fuel economy
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GLM4205
Champion Author Toledo

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Message Posted: Oct 21, 2013 5:53:34 AM

Don't know..
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GLM4205
Champion Author Toledo

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Message Posted: Oct 8, 2013 5:48:29 AM

I will try this for check.
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pinbuster2005
Champion Author New Hampshire

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Message Posted: Oct 5, 2013 3:20:29 PM

I too have noticed mileage differences between brands. Because of those differences the cost per mile ends up different. So I go by that when figuring what brand to by for the automobile i'm driving at the time.
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bluenvoy
Champion Author Nashville

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Message Posted: Sep 14, 2013 9:34:39 AM

No difference for me. Did get some bad gas once, caused knocking.
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dontuknowOH
Champion Author Ohio

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Message Posted: Sep 14, 2013 9:12:43 AM

I'm still sleeping well, because I never have had any Oil Stocks... and I never fill guilty of even a smidgeon of starting a gas war over the better mileage of fuel brands. Wind forces can foul-up DIY mileage tests, but they are interesting! Weatherman dependent maybe..... OK!
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dassfg
Champion Author Fort Worth

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Message Posted: Sep 14, 2013 8:51:01 AM

Sometimes you get something other than what you pay for. It can be more octane or less.
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MertieMan
Champion Author Lexington

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Message Posted: Sep 14, 2013 7:44:22 AM

That is probably because Speedway has more ethanol in it, and I have noticed this also recently.
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DanFMA
Champion Author Massachusetts

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Message Posted: Sep 14, 2013 7:21:55 AM

Don't see any difference.
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Camry05
All-Star Author Indiana

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Message Posted: Sep 14, 2013 5:04:28 AM

Gasbuddy, I had noticed small differences in mileage when I used different gas stations. Please note I am not affiliated with either speedway or shell. So I decided to check for myself. I used only 1 speedway station and only 1 shell station. I did not use any octane boosters, fuel system cleaners or any other additives. I performed 4 oil changes on the car in that period, all myself. I used only Valvoline 10w-40 High Mileage and Fram Tough Guard Oil filter each time. I used an excel file to note everything. Here are my results.

Car - 1988 Toyota Camry 2.0 L I4, 4 Speed Automatic Transmission

Speedway Start Date - March 10, 2011
Start Mileage - 145283
End Date - September 10, 2011
End Mileage - 152105
Miles Driven - 6822
Gallons Used - 291.202
Miles per Gallon - 23.427

Shell Start Date - September 10, 2011
Start Mileage - 152105
End Date- March 10, 2012
End Mileage - 158776
Miles Driven - 6671
Gallons Used - 246.909
Miles per Gallon - 27.018
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randy3116
Champion Author Tennessee

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Message Posted: Sep 10, 2013 9:13:09 AM

Yes. Over the last year I tend to get higher MPGs using BP than other brands.
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rmw10rpw
Champion Author West Virginia

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Message Posted: Sep 5, 2013 9:27:01 AM

yes - I have my car gets five more miles to gallon on Exxon then Shell/Kroger
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Dustin19d
Champion Author Fayetteville

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Message Posted: Sep 5, 2013 12:09:40 AM

Havent noticed
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xbAG
Champion Author California

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Message Posted: Sep 4, 2013 10:44:53 PM

I haven't notice any difference
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Zennyboy
Veteran Author Toronto

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Message Posted: Sep 4, 2013 1:15:32 AM

n
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pacecar68
Champion Author Oakland

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Message Posted: Sep 3, 2013 11:39:16 PM

no,
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GrumpyCat
Champion Author Alabama

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Message Posted: Sep 3, 2013 10:49:09 PM

No.

But I have noticed a difference in MPG based on the source of fuel. Around here the Sams, Shell, and Chevron stations get the best MPG. Kanagroo, Murphy, and Kroger get the worst. Exxon/Mapco is pretty bad here too but not in other parts of the country.
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WEPSMAN
Champion Author South Dakota

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Message Posted: Sep 3, 2013 10:30:33 PM

Not really.
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Boyrr
Champion Author Allentown

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Message Posted: Sep 3, 2013 6:25:58 AM

no diff for me
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cv
Champion Author Raleigh

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Message Posted: Sep 3, 2013 6:19:02 AM

No change for my vehicle.
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lyanMI
Champion Author Detroit

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Message Posted: Aug 30, 2013 8:53:58 AM

Didn't notice
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dontuknowOH
Champion Author Ohio

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Message Posted: Aug 30, 2013 8:45:39 AM

I believe if your vehicle is turbo or supercharged or altered to have high compression then premium fuel brands may vary in how well your vehicle performs with mileage also. Not much but noticeable threw some rpm ranges only on days where humidity plays a roll along with ambient air temps, most ECM can make moderate changes to compensate for that on a healthy modern engine.

Vehicles that have a maintenance slight problem awaiting to become more serious can mislead ECM corrections, then waste fuel/performance, any brand of fuel can then catch the blame, premium or regular, mainly High End Engines require a constant state of tuned operation.

The real story here is > The more precise equipment is designed (quality built) The more target maintenance is needed for top performance. As the least (reg.) can struggle along with tinkering, tinkering, more tinkering.

Being a DIYer I have those memories, still most are good, maybe better!
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rick_evans
Champion Author Boston

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Message Posted: Aug 30, 2013 8:42:45 AM

Nope
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hoopitup2000
Champion Author Virginia

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Message Posted: Aug 30, 2013 7:39:12 AM

Never noticed any difference . .
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Dennis783
Champion Author Des Moines

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Message Posted: Aug 30, 2013 7:23:32 AM

nope, gas is gas
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rmw10rpw
Champion Author West Virginia

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Message Posted: Aug 29, 2013 7:45:00 AM

get a lot less with shell than exxon
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dfp609
Champion Author Cincinnati

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Message Posted: Aug 28, 2013 5:30:00 PM

I used to be able to tell a difference between brands, but not anymore.
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Gas_Buddy
Champion Author Maryland

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Message Posted: Aug 28, 2013 5:10:28 PM

Camry05: You wrote: "I find that speedway gives less mileage than shell"

Can you explain how you conducted your fuel economy testing, and how in-depth your testing was, so that we can better answer your question?

Moderators should move this topic to the Fuel Economy discussion category for better responses.
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shstew
Champion Author British Columbia

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Message Posted: Aug 28, 2013 10:07:52 AM

Of course not.
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lwood655
Champion Author New Orleans

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Message Posted: Aug 28, 2013 9:56:45 AM

no, the gas is basically the same just different additives for cleaning and such
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MertieMan
Champion Author Lexington

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Message Posted: Aug 28, 2013 9:28:57 AM

It is basically all the same and the brands mean absolutely nothing.
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grim_farva
Champion Author Kansas

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Message Posted: Aug 28, 2013 9:19:34 AM

I've never noticed any difference
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Cooey
Veteran Author Manitoba

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Message Posted: Aug 28, 2013 9:13:39 AM

Well Shell is a Top Tier gasoline; it might make a difference mileage wise. Hard to know.
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EdPG
Champion Author Boston

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Message Posted: Aug 28, 2013 9:02:27 AM

I don't see it
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Glasman
Champion Author South Carolina

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Message Posted: Aug 28, 2013 8:31:35 AM

a little.
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33gort33
Champion Author Indiana

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Message Posted: Aug 28, 2013 8:12:52 AM

not sure I believe this - fuel is fuel.

If you look at any number of fuel depots you will notice

many different tankers loading up the same fuel.

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Pizza53
Champion Author London

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Message Posted: Aug 28, 2013 8:10:00 AM

interesting.... I normally tank at shell... but would need to do a few tank fulls at another brand to really show a difference.... I choose Shell to collect airmiles..
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