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Author Topic: Do you get better mileage from different brands? Back to Topics
JunGleJimBo
All-Star Author
Orange County

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Message Posted: Dec 29, 2012 6:46:26 PM

I have noticed a trend. When I fill up with Shell, I get poorer furel economy. I have had better mileage on Mobil and Exxon. Anybody else notice this?

Why is it importatnt? Shell offers $.10 to $.20 discount when using your Ralphs REwards card. While I save a buck or two at the filling part, it costs three bucks in fuel.

JimBo
REPLIES (newest first) Post a Reply
dontuknowOH
Champion Author Ohio

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Message Posted: Dec 19, 2013 8:00:02 AM

I haven't noticed an difference except when the tires pressure drops off by 2-3#s due to a drastic colder weather change near 0 F degrees. All my vehicles loose mileage due to restarts/cold stiffness then.
eyegotgas2
Champion Author British Columbia

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Message Posted: Dec 19, 2013 7:14:06 AM

I also have winter tires on and I wonder if that makes a difference.
eyegotgas2
Champion Author British Columbia

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Message Posted: Dec 19, 2013 7:13:20 AM

It doesn't seem to matter to my car but I am getting poorer mileage in the winter. I assume it is because my heater is always on.
m1gunr
Veteran Author Tacoma

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Message Posted: Dec 19, 2013 6:13:31 AM

I have a 98 Suburban (5.7L) and a 2003 BMW 530i. I do notice a difference at different stations.

The Suburban does not like Chevron, Shell or Texaco gas but runs very well on ARCO. The BMW like the Chevron/Texaco fuels.
RalphHightower
Champion Author South Carolina

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Message Posted: Dec 19, 2013 6:08:03 AM

I haven't noticed.
zippy3231
Champion Author Jacksonville

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Message Posted: Dec 19, 2013 1:45:57 AM

I do notice that when I use cheaper fuels I do get less MPG.
pawnkingfour
Champion Author Georgia

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Message Posted: Dec 18, 2013 9:27:14 PM

I haven't notice really.
gobux10
Champion Author Ohio

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Message Posted: Dec 18, 2013 8:09:14 PM

Too small to count for the brand
phatbak
Champion Author Georgia

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Message Posted: Dec 18, 2013 7:48:05 PM

No, but I get an extra 1.5 mpg by adding 4 oz of Marvel Mystery Oil to each fillup.
RaceFan6
Sophomore Author Fort Worth

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Message Posted: Dec 18, 2013 1:33:56 PM

nope
Desoto49
Champion Author KW

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Message Posted: Dec 18, 2013 8:55:00 AM

No
nonsuvdriver
All-Star Author Toronto

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Message Posted: Dec 17, 2013 8:44:21 AM

No
Desoto49
Champion Author KW

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Message Posted: Dec 12, 2013 11:06:29 AM

No
rick_evans
Champion Author Boston

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Message Posted: Nov 19, 2013 5:34:32 PM

You should publish a paper in an engineering journal.
dontuknowOH
Champion Author Ohio

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Message Posted: Nov 14, 2013 9:56:18 PM

I just think every vehicle needs a wind velocity gauge outside their windshield visible to the driver, day/night, rain/shine, cold/hot, one that works.....
Boyrr
Champion Author Allentown

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Message Posted: Nov 14, 2013 5:38:38 PM

Not really
TomB2
Champion Author St. Louis

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Message Posted: Nov 14, 2013 11:53:04 AM

The difference between brands is mostly the additive package. Both Shell and Mobil are top tier fuels.

"All the gas comes from the same pipe line. You get better mileage when the stations put in the right amount of octane."

While most gas in a particular area does come from the same source and varies only by the additive package, octane is not an additive. Many brands boost their octane to the proper level by the addition of ethanol.
rmw10rpw
Champion Author West Virginia

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Message Posted: Nov 14, 2013 8:18:59 AM

yes
same with my vehicle Shell or Krogers either one gets at least our or five miles to the gallon less than Exxon
Speedway gets a little less but not as bad as Shell or Krogers
Quick68
Champion Author Columbus

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Message Posted: Nov 14, 2013 3:54:11 AM

All the gas comes from the same pipe line. You get better mileage when the stations put in the right amount of octane.
pghbill
Champion Author Pittsburgh

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Message Posted: Nov 14, 2013 12:25:22 AM

no
carinthuist
Champion Author San Francisco

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Message Posted: Nov 13, 2013 11:55:36 PM

No
superscion
Champion Author Twin Cities

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Message Posted: Nov 13, 2013 3:15:38 PM

My vehicle seems to run better with Mobil.
carinthuist
Champion Author San Francisco

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Message Posted: Nov 10, 2013 6:05:35 PM

no
pt1KY
Champion Author Lexington

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Message Posted: Nov 9, 2013 9:25:20 AM

no
dassfg
Champion Author Fort Worth

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Message Posted: Nov 9, 2013 9:20:55 AM

Same on major brands
dgsteven
Champion Author Los Angeles

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Message Posted: Nov 8, 2013 3:12:02 AM

no
Quick68
Champion Author Columbus

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Message Posted: Nov 8, 2013 1:11:15 AM

It's not the brand but it is the amount of octane in the gas.
pinbuster2005
Champion Author New Hampshire

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Message Posted: Nov 7, 2013 5:00:34 AM

hemond - "If true the EPA would mandate use of BP fuel. As would the Dept. of Energy. All the car manufacturers would recommend BP. "

Not really because it's not the same with all automobiles. In the ones I've owned in my 25+ years of driving it was a different brand with each one that netted the best mileage/cost per mile. It wasn't always the cheapest brand either. It could be a difference in the additives used in each brand or in today's gas it could be a slight difference in the amount of ethanol that is in it.

[Edited by: pinbuster2005 at 11/7/2013 5:01:33 AM EST]
contiki
Champion Author Ontario

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Message Posted: Nov 6, 2013 7:09:49 AM

No.......
Boyrr
Champion Author Allentown

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Message Posted: Nov 5, 2013 12:52:06 PM

not that I notice
hatchdriver
Rookie Author Virginia Beach

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Message Posted: Nov 4, 2013 4:27:41 PM

That would take gov testing and limit choices almost creating a monopoly. This is my personal experience and findings.

"If true the EPA would mandate use of BP fuel. As would the Dept. of Energy. All the car manufacturers would recommend BP"
weddy11
Champion Author Phoenix

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Message Posted: Nov 4, 2013 8:56:20 AM

No
pt1KY
Champion Author Lexington

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Message Posted: Nov 4, 2013 8:49:49 AM

rarely
dassfg
Champion Author Fort Worth

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Message Posted: Nov 4, 2013 8:25:19 AM

Usually about the same
hoopitup2000
Champion Author Virginia

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Message Posted: Nov 4, 2013 8:19:44 AM

Never noticed a difference. . .
Houckster
Champion Author Atlanta

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Message Posted: Nov 3, 2013 2:02:57 PM

There should be no significant difference in mileage between fuel brands.
citizen1
Champion Author Connecticut

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Message Posted: Nov 3, 2013 1:47:17 PM

never tested this one. Usually fill up at one of the same two stations because they are usually the lowest price.
karl13
Champion Author Miami

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Message Posted: Nov 3, 2013 1:37:02 PM

no
Hemond
Champion Author Providence

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Message Posted: Nov 3, 2013 11:33:39 AM

:::::Yes, on my performance car I can monitor AFR and overall BP has net me 2 mpg but more constant AFR's.::::


If true the EPA would mandate use of BP fuel. As would the Dept. of Energy. All the car manufacturers would recommend BP.
contiki
Champion Author Ontario

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Message Posted: Nov 3, 2013 11:06:32 AM

I never really noticed....................
the1roadhog
Champion Author Atlanta

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Message Posted: Nov 3, 2013 8:01:22 AM

Who KNOWS???
Boyrr
Champion Author Allentown

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Message Posted: Nov 2, 2013 5:32:02 PM

Not that I notice
hatchdriver
Rookie Author Virginia Beach

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Message Posted: Nov 2, 2013 2:12:17 PM

Yes, on my performance car I can monitor AFR and overall BP has net me 2 mpg but more constant AFR's. The only downside is it costs more for the quality.
WilhamClouse
Champion Author Calgary

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Message Posted: Nov 2, 2013 11:09:54 AM

Never really noticed.
eyegotgas2
Champion Author British Columbia

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Message Posted: Nov 2, 2013 7:10:27 AM

I doubt it but I have noticed some pumps are faster than others. The slower ones tend to get more gas in before triggering the auto shut off. Not a whole lot more but maybe a liter more.
waynecz
Champion Author Mississippi

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Message Posted: Nov 2, 2013 12:50:50 AM

I don't think so and if we do it's mostly insignificant. Driving habits have more of an impact
justinemt14
Champion Author Philadelphia

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Message Posted: Aug 5, 2013 3:05:41 AM

Yes - BP, Shell, and Exxon are the best
waynecz
Champion Author Mississippi

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Message Posted: Aug 5, 2013 12:04:27 AM

not that I have noticed
GLM4205
Champion Author Toledo

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Message Posted: Aug 4, 2013 11:07:30 AM

Nada
33gort33
Champion Author Indiana

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Message Posted: Aug 1, 2013 1:43:22 PM

I don't think so...could be though
jack4141
Champion Author Alabama

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Message Posted: Aug 1, 2013 10:30:35 AM

Yes
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