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#3254958 - 01/21/14 11:09 AM How much better is Shell gas than Exxon?
taurus_sable Offline


Registered: 02/04/10
Posts: 82
Loc: Northeast
I usually use Shell 93 only. But I can find Exxon 93 for $0.15/gal cheaper than Shell in my area. Is it worth the switch?

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#3254961 - 01/21/14 11:10 AM Re: How much better is Shell gas than Exxon? [Re: taurus_sable]
Rand Online   content


Registered: 08/20/03
Posts: 7586
Loc: Barberton,Ohio
what your real question is...

how much better are shell gas additives than exxon gas additives.
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#3254970 - 01/21/14 11:16 AM Re: How much better is Shell gas than Exxon? [Re: taurus_sable]
dparm Offline


Registered: 04/19/10
Posts: 12518
Loc: Chicago, IL
Prediction: this thread will get filled with fanboys of each brand of gas, with no objective data to back up their claims.

That being said, I have used pretty much every brand of premium (91-93) gas under the sun in many different vehicles and not once did I say, "this gas sucks, I'm never buying it again."
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#3254975 - 01/21/14 11:21 AM Re: How much better is Shell gas than Exxon? [Re: taurus_sable]
ARCOgraphite Offline


Registered: 05/17/09
Posts: 8531
Loc: N.H, U.S.A.
Fuel quality is all over the place up here. Recently I found good fuel at Irving in North Salem near MCKinnons, and at the Mobil near my house in Kingston. Surprisingly I got terrible ( high octane) gas at the Mobil next to the BMW dealership in Stratham. The Shell in Kingston pours garbagre more. frequently than not.
Guess it depends on what the fuel guy was hauling b4 he got a gasoline load, how much free water there is in the UGST , how much Ethanol there is in the blend and how nice the blend ended up at the Terminal that batch. Its like buying vegetables at the market or vintage wine. Too many variables to say brand X is better than Brand S.
I will say I have enjoyed Xom latest additive wizardry last summer more than anything else in the low octane stuff araound these parts.

Why do you need high octane?


Edited by ARCOgraphite (01/21/14 11:23 AM)
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#3254979 - 01/21/14 11:25 AM Re: How much better is Shell gas than Exxon? [Re: taurus_sable]
salv Offline


Registered: 04/21/11
Posts: 1142
Loc: Morrisonville, NY
Shell is not better than Exxon or vice versa. Both are high quality gasoline. Buy whichever is cheaper.
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#3254983 - 01/21/14 11:29 AM Re: How much better is Shell gas than Exxon? [Re: salv]
grampi Offline


Registered: 10/08/06
Posts: 3553
Loc: OH
Originally Posted By: salv
Shell is not better than Exxon or vice versa. Both are high quality gasoline. Buy whichever is cheaper.


I was thinking the same thing...

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#3254986 - 01/21/14 11:33 AM Re: How much better is Shell gas than Exxon? [Re: grampi]
440Magnum Offline


Registered: 02/01/09
Posts: 6291
Loc: Texas
Originally Posted By: grampi
Originally Posted By: salv
Shell is not better than Exxon or vice versa. Both are high quality gasoline. Buy whichever is cheaper.


I was thinking the same thing...


+1 Same difference, buy the cheapest, easier to get in/out of, whatever other criteria you pick.
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#3254988 - 01/21/14 11:33 AM Re: How much better is Shell gas than Exxon? [Re: taurus_sable]
Durango Offline


Registered: 02/15/07
Posts: 2042
Loc: Los Angeles, California
Originally Posted By: taurus_sable
I usually use Shell 93 only. But I can find Exxon 93 for $0.15/gal cheaper than Shell in my area. Is it worth the switch?


taurus_sable,

Out of the two gasolines you mentioned Shell is the most expensive in my area so That's why I refuse to buy any Shell product. I mean the price per gallon is in the mid four dollar range with for sure the 91 octane is an easy $4.99/gallon.

I know this has been mentioned before and I don't want to open a new can or worms.Personally I don't feel Shell is any better than Exxon.

ARCO gas is priced reasonable and it's price is still in the mid three dollar range. That's why I try to pay cash now and use the card only when necessary. This California gas price is for the birds!

Durango


Edited by Durango (01/21/14 11:35 AM)
Edit Reason: a new sentence

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#3254991 - 01/21/14 11:38 AM Re: How much better is Shell gas than Exxon? [Re: taurus_sable]
TrevorS Offline


Registered: 07/14/13
Posts: 1281
Loc: California
Best way is to use you butt dino and observe long term mpg trends.

I have observed differences in gas with the butt dino (LOL unintended joke) and I suspect it is to do with ethanol % which can vary.

I have observed better performance with Shell and Valero and sluggish performance with Chevron. 76 and Costco somewhere in between.

BUT, 15c is about a 5% difference which I doubt you'd recoup even if the expensive gas has zero ethanol and the cheap gas has the maximum 10%.

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#3254997 - 01/21/14 11:47 AM Re: How much better is Shell gas than Exxon? [Re: taurus_sable]
Donald Offline


Registered: 03/21/04
Posts: 13495
Loc: Upstate NY
How are people determining a good gas vs a crummy gas? Most cars have anti-knock sensors so you may not notice a tiny difference in octane. Fuel tanks and fuel filters are usually spotless unless you have not driven the vehicle for many years.

Most people are not pulling heads to look for deposits and doing fuel injector testing to see how clean they are.
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#3254998 - 01/21/14 11:49 AM Re: How much better is Shell gas than Exxon? [Re: Donald]
dparm Offline


Registered: 04/19/10
Posts: 12518
Loc: Chicago, IL
Originally Posted By: Donald
How are people determining a good gas vs a crummy gas? Most cars have anti-knock sensors so you may not notice a tiny difference in octane. Fuel tanks and fuel filters are usually spotless unless you have not driven the vehicle for many years.

Most people are not pulling heads to look for deposits and doing fuel injector testing to see how clean they are.




My point exactly. I don't understand the arbitrary "gas X is better than Y" posts. There are minimum quality requirements anyway.
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#3255003 - 01/21/14 11:52 AM Re: How much better is Shell gas than Exxon? [Re: ARCOgraphite]
taurus_sable Offline


Registered: 02/04/10
Posts: 82
Loc: Northeast
Originally Posted By: ARCOgraphite

Why do you need high octane?

I need >91 for my volkswagon 3.0T engine.

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#3255009 - 01/21/14 11:55 AM Re: How much better is Shell gas than Exxon? [Re: taurus_sable]
CourierDriver Offline


Registered: 12/27/09
Posts: 3070
Loc: Tennessee
O boy,,,is this gonna be a top tier gas report,,,,hmmmmmmm
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2005Buick,LeSabre,L3800engine, 25mpgcity, 31Hwy. 90,000miles

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#3255010 - 01/21/14 11:57 AM Re: How much better is Shell gas than Exxon? [Re: taurus_sable]
Tdbo Offline


Registered: 08/18/09
Posts: 1713
Loc: Ohio
Given that both are blessed by the "Top Tier" Gods, I'd say they are about the same.
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#3255021 - 01/21/14 12:12 PM Re: How much better is Shell gas than Exxon? [Re: taurus_sable]
Kuato Offline


Registered: 10/23/05
Posts: 3075
Loc: Northeastern MT
Meh, they travel in the same pipeline.

Had a buddy who swore he got better mpg with Shell. If your mpg doesn't vary with fuel, buy the less expensive of the two.
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04 Jeep Wrangler 2.4, MT, 184k
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#3255112 - 01/21/14 01:27 PM Re: How much better is Shell gas than Exxon? [Re: taurus_sable]
EricF Offline


Registered: 07/14/09
Posts: 1579
Loc: SF Bay Area
I've never liked shell gas for 1 reason, but today 2.
the first being, it always costs more no matter what.
the second stems for my Ranger
the people who owned my truck before me used shell exclusively, they had to put 92 (at the time) octane in. When I bought it from them, they told me if I didn't use 92, the motor would ping constantly.
So after the tank emptied out, I decided to test that theory and I put Unocal 76 regular unleaded in. Not one problem.
after that tank, I put 10 gallons of shell regular unleaded (87) in, and yes, I noticed a ping.
I burned 5 gallons up, and filled up on Unocal 76 regular unleaded.
the pinging stopped. Next 3 tanks were Unocal.
I then went to Arco because I was out of town and didn't want to use Shell. Not one problem.
Well fast forward 15 years, I use cheap fuel, Costco mainly, Valero if I'm deathly low (cuz a valero station is across the street from me). No pinging, no problems.

However, where I live, there's 3 gas suppliers, shell, chevron and this one called golden eagle. Of these 3 refineries, I know that wherever you go, you're getting one of these fuels.
You get the same gas, but their proprietary additives.

So all you can do is hope you're getting what you're getting.
_________________________
1993 Ford Ranger XLT 4.0L 4x4 (240k) 5W-30 Synpower
2006 Saturn Relay-3 3.5L (85k) 5W-30 Synpower
2012 Ford Fusion SE 2.5L (39k) 5W20 M/C Semi Syn

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#3255141 - 01/21/14 01:44 PM Re: How much better is Shell gas than Exxon? [Re: dparm]
ARCOgraphite Offline


Registered: 05/17/09
Posts: 8531
Loc: N.H, U.S.A.
Originally Posted By: dparm
Originally Posted By: Donald
How are people determining a good gas vs a crummy gas? Most cars have anti-knock sensors so you may not notice a tiny difference in octane. Fuel tanks and fuel filters are usually spotless unless you have not driven the vehicle for many years.

Most people are not pulling heads to look for deposits and doing fuel injector testing to see how clean they are.




My point exactly. I don't understand the arbitrary "gas X is better than Y" posts. There are minimum quality requirements anyway.
Throttle response, power, power availabilty etc. Things Sentient beings might notice. Oh, thats right we are in the Dark Ages - Part Deux. Flat earthers rejoice!


Quality requirements and Top Tier policing is a Joke.


Edited by ARCOgraphite (01/21/14 01:45 PM)
_________________________
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#3255185 - 01/21/14 02:21 PM Re: How much better is Shell gas than Exxon? [Re: ARCOgraphite]
dparm Offline


Registered: 04/19/10
Posts: 12518
Loc: Chicago, IL
Originally Posted By: ARCOgraphite
Originally Posted By: dparm
Originally Posted By: Donald
How are people determining a good gas vs a crummy gas? Most cars have anti-knock sensors so you may not notice a tiny difference in octane. Fuel tanks and fuel filters are usually spotless unless you have not driven the vehicle for many years.

Most people are not pulling heads to look for deposits and doing fuel injector testing to see how clean they are.




My point exactly. I don't understand the arbitrary "gas X is better than Y" posts. There are minimum quality requirements anyway.
Throttle response, power, power availabilty etc. Things Sentient beings might notice. Oh, thats right we are in the Dark Ages - Part Deux. Flat earthers rejoice!


Quality requirements and Top Tier policing is a Joke.



You really notice that big of a difference in power from one brand of gas to the next? Your butt dyno is the most sensitive I've ever read about, in that case.

I've never seen anything conclusive, but I'd bet the average person can't even detect a 5% change in power output. It's why companies who sell air intakes claiming 7hp laugh all the way to the bank.
_________________________
2011.5 BMW M3 saloon ZCP
der stärkste buchstabe der welt
Castrol Edge Professional TWS 10w60 + Mahle OX 254D3

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#3255240 - 01/21/14 03:17 PM Re: How much better is Shell gas than Exxon? [Re: taurus_sable]
NMBurb02 Offline


Registered: 09/12/12
Posts: 1323
Loc: Crowntown, CA
With those two brands, I would go by price, unless the Exxon station is poorly maintained and a low volume station, increasing the chance of getting contaminated or stale fuel (then I might pay the 15¢ premium). I have Shell, Mobil, Chevron, 76, ARCO, and USA stations within 1.5 miles of my house. I normally go to the Shell or Chevron stations, but will also buy from the Mobil or 76 stations (I drink the Top Tier koolaid) if they are less expensive or more convenient.
_________________________
2002 Chevy Suburban 1500, G-Oil 5W-30, Napa Gold FIL 4805
2006 Pontiac Grand Prix GT, Valvoline ML NG 10W-30 +MMO, Puro PureOne PL10111

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#3255251 - 01/21/14 03:30 PM Re: How much better is Shell gas than Exxon? [Re: taurus_sable]
dlundblad Online   happy


Registered: 09/30/13
Posts: 1697
Loc: Indiana
I've used all brands and my mileage still sucks.
_________________________
2003 Jeep Grand Cherokee 4.0
PYB 10w30/ Mopar Mo-090


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#3255259 - 01/21/14 03:41 PM Re: How much better is Shell gas than Exxon? [Re: taurus_sable]
CourierDriver Offline


Registered: 12/27/09
Posts: 3070
Loc: Tennessee
No matter what gas I put in my old and probably deceased 67 Beetle , it still took about 30 seconds to reach 60 mph and that was if I left the wife I use to have standing at the gas station,,,of course I always went back to get her,,,why?? I don't really know....


Edited by CourierDriver (01/21/14 03:42 PM)
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2005Buick,LeSabre,L3800engine, 25mpgcity, 31Hwy. 90,000miles

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#3255276 - 01/21/14 03:56 PM Re: How much better is Shell gas than Exxon? [Re: taurus_sable]
SLCraig Offline


Registered: 12/21/08
Posts: 5291
Loc: London, ON, Canada
I do not see what difference it makes.

I fill up everywhere, never seem to notice a difference in the car.
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#3255409 - 01/21/14 06:04 PM Re: How much better is Shell gas than Exxon? [Re: taurus_sable]
HTSS_TR Offline


Registered: 04/17/06
Posts: 12901
Loc: Irvine, CA
Even knowing that almost all name brands gas are similar I still prefer Chevron more than any other, if they are few pennies more I will fill up there, if they are more than 10 cents more then I will fill up at Shell, Mobil, 76, USA gas ...

In my area Shell is usually less than others by about 2-10 cents a gallon, Chevron is the most expensive more than 10-20 cents more than USA gas.
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#3255562 - 01/21/14 07:22 PM Re: How much better is Shell gas than Exxon? [Re: taurus_sable]
TiredTrucker Offline


Registered: 01/04/08
Posts: 994
Loc: Kellogg, IA
Having hauled gas and diesel up until a few years ago, the gas at every station in a particular area is getting their fuel from the same terminal locations. And those terminal locations are getting their fuel from the same refinery, though the refineries will play a round robin kind of thing once in a while.

It was hit upon correctly, that gas is the same, only the additives may be different. When I would load a tanker, I selected who was getting the gas. The system would dose the gas as it was loaded with the additives that the customer wanted. Now, to that end, all the easily recognized name brands are getting just about the very same gasoline and additives. The only differences are between them and the regional convenience store kind of gas stations, which will only request a very basic, minimal additive supplement.

Just go with the best price you can get your fuel for. Forget the silly nonsense about who has the best gas. It is true that maybe the load the Chevron got down the street got yesterday was from a different refinery, since the terminal may have switched suppliers and the load the BP down the street is different today because of that switch. It jumps back and forth all the time.

Brand loyalty is really something. But a simple look behind the scenes can really be an eye opener. But some will continue to where blinders and claim one brand is better than the other. They just know!
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#3255583 - 01/21/14 07:27 PM Re: How much better is Shell gas than Exxon? [Re: TiredTrucker]
Garak Offline


Registered: 12/05/09
Posts: 11462
Loc: Regina, Saskatchewan, Canada
Originally Posted By: TiredTrucker
Just go with the best price you can get your fuel for. Forget the silly nonsense about who has the best gas. It is true that maybe the load the Chevron got down the street got yesterday was from a different refinery, since the terminal may have switched suppliers and the load the BP down the street is different today because of that switch. It jumps back and forth all the time.

Or, when you have Petro-Canadas up here that prefer to temporarily close a station rather than buy their gas from someone else.
_________________________
Plain, simple Garak.

2008 Infiniti G37 coupe - Mobil Delvac 1 ESP 5w-40, Hastings LF113
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#3255593 - 01/21/14 07:34 PM Re: How much better is Shell gas than Exxon? [Re: Garak]
OVERKILL Online   content


Registered: 04/28/08
Posts: 26268
Loc: Ontario, Canada
Originally Posted By: Garak
Originally Posted By: TiredTrucker
Just go with the best price you can get your fuel for. Forget the silly nonsense about who has the best gas. It is true that maybe the load the Chevron got down the street got yesterday was from a different refinery, since the terminal may have switched suppliers and the load the BP down the street is different today because of that switch. It jumps back and forth all the time.

Or, when you have Petro-Canadas up here that prefer to temporarily close a station rather than buy their gas from someone else.


That sounds awfully Quebec-esque Garak wink
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#3255633 - 01/21/14 08:06 PM Re: How much better is Shell gas than Exxon? [Re: taurus_sable]
TFB1 Offline


Registered: 09/03/10
Posts: 2622
Loc: VA
Originally Posted By: taurus_sable
I usually use Shell 93 only. But I can find Exxon 93 for $0.15/gal cheaper than Shell in my area. Is it worth the switch?


Assuming your vehicle recommends 87, use that and you'll save FAR more money than worrying about competing brands...

Me I'll use Shell and won't go near a Exxon station... All that stems from a 5.0 Mustang I owned that had a unexplainable buck/surge that turned out to be Exxon gas... Now this was in 1996 and I've bought their gas exactly twice since then, only when I was low and not sure where the next station may be... The 5.0 stang??? Sold it in '97...

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#3255671 - 01/21/14 08:35 PM Re: How much better is Shell gas than Exxon? [Re: OVERKILL]
Garak Offline


Registered: 12/05/09
Posts: 11462
Loc: Regina, Saskatchewan, Canada
Originally Posted By: OVERKILL
That sounds awfully Quebec-esque Garak wink

Now that you mention it, you're right. I believe it was a couple months back when they had a supply problem here. Shockingly, instead of using that as an excuse to raise the price, they left that alone. They did state that they wouldn't buy fuel from anyone else unless absolutely necessary, and just switched the pumps off at the south Albert Street locations. It only lasted a few days.
_________________________
Plain, simple Garak.

2008 Infiniti G37 coupe - Mobil Delvac 1 ESP 5w-40, Hastings LF113
1984 F-150 4.9L six - Quaker State GB 10w-30, Wix 51515

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#3255781 - 01/21/14 10:58 PM Re: How much better is Shell gas than Exxon? [Re: TiredTrucker]
taurus_sable Offline


Registered: 02/04/10
Posts: 82
Loc: Northeast
Originally Posted By: TiredTrucker
Having hauled gas and diesel up until a few years ago, the gas at every station in a particular area is getting their fuel from the same terminal locations. And those terminal locations are getting their fuel from the same refinery, though the refineries will play a round robin kind of thing once in a while.

It was hit upon correctly, that gas is the same, only the additives may be different. When I would load a tanker, I selected who was getting the gas. The system would dose the gas as it was loaded with the additives that the customer wanted. Now, to that end, all the easily recognized name brands are getting just about the very same gasoline and additives. The only differences are between them and the regional convenience store kind of gas stations, which will only request a very basic, minimal additive supplement.

Just go with the best price you can get your fuel for. Forget the silly nonsense about who has the best gas. It is true that maybe the load the Chevron got down the street got yesterday was from a different refinery, since the terminal may have switched suppliers and the load the BP down the street is different today because of that switch. It jumps back and forth all the time.

Brand loyalty is really something. But a simple look behind the scenes can really be an eye opener. But some will continue to where blinders and claim one brand is better than the other. They just know!


Thanks for the insider info. Shell's gas is nitrogen enriched, in which step does Shell do that? after the gas is loaded to the gas station tanks?

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#3255792 - 01/21/14 11:23 PM Re: How much better is Shell gas than Exxon? [Re: taurus_sable]
FZ1 Offline


Registered: 02/07/08
Posts: 4192
Loc: Texas
Top tier for my Honda. Exxon,Shell,run fine. Chevron,with techron,seems to get,slightly,better mpg.

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#3255832 - 01/22/14 12:50 AM Re: How much better is Shell gas than Exxon? [Re: taurus_sable]
NMBurb02 Offline


Registered: 09/12/12
Posts: 1323
Loc: Crowntown, CA
Originally Posted By: taurus_sable
Originally Posted By: TiredTrucker
Having hauled gas and diesel up until a few years ago, the gas at every station in a particular area is getting their fuel from the same terminal locations. And those terminal locations are getting their fuel from the same refinery, though the refineries will play a round robin kind of thing once in a while.

It was hit upon correctly, that gas is the same, only the additives may be different. When I would load a tanker, I selected who was getting the gas. The system would dose the gas as it was loaded with the additives that the customer wanted. Now, to that end, all the easily recognized name brands are getting just about the very same gasoline and additives. The only differences are between them and the regional convenience store kind of gas stations, which will only request a very basic, minimal additive supplement.

Just go with the best price you can get your fuel for. Forget the silly nonsense about who has the best gas. It is true that maybe the load the Chevron got down the street got yesterday was from a different refinery, since the terminal may have switched suppliers and the load the BP down the street is different today because of that switch. It jumps back and forth all the time.

Brand loyalty is really something. But a simple look behind the scenes can really be an eye opener. But some will continue to where blinders and claim one brand is better than the other. They just know!


Thanks for the insider info. Shell's gas is nitrogen enriched, in which step does Shell do that? after the gas is loaded to the gas station tanks?

It's a nitrogen-based detergent (as is Techron), not nitrogen gas, which is added at the depot with the rest of the additive package.
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#3255854 - 01/22/14 02:29 AM Re: How much better is Shell gas than Exxon? [Re: taurus_sable]
Subdued Offline


Registered: 10/06/13
Posts: 284
Loc: Youngstown, NY
I just fill up at the rez with nice tax free gas, my engines run fine

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#3256264 - 01/22/14 01:00 PM Re: How much better is Shell gas than Exxon? [Re: taurus_sable]
MCompact Offline


Registered: 07/21/02
Posts: 1716
Loc: KY
I generally use either BP or Shell, as they are the most prevalent Top Tier fuels in my area. I can't tell a difference between the two.
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#3256325 - 01/22/14 01:49 PM Re: How much better is Shell gas than Exxon? [Re: taurus_sable]
Clevy Offline


Registered: 11/11/10
Posts: 7237
Loc: Saskatoon canada
Originally Posted By: taurus_sable
I usually use Shell 93 only. But I can find Exxon 93 for $0.15/gal cheaper than Shell in my area. Is it worth the switch?



We don't have Exxon fuel here however our esso brand is the imperial oil and Exxon equivalent.
From experience I've tried many different fuels and in my vehicles I never really noticed any difference however my Harley is a different story.
It's got an S&S big bore kit,cams,port work on the heads and they were milled for compression(and to flatten them perfectly)dyno tune etc,etc.
My bike is very picky when it comes to fuel. My bike runs great on shell 91 v-power,co-op 91 octane and petro-Canada 91 octane.
The husky/Mohawk 92-94 octane stuff is hit and miss,I think its dependent on how old the fuel is. My bike also looses 5mpg with Mohawk/husky fuel so I don't bother with it anymore.
My bike pings audibly with esso 91,fasgas 91 and basically every station other than the 3 I mentioned above.
Only my bike pings though,my vehicles run fine on any of the above fuels however I use my bike as the standard and if the fuel is no good in it,then I steer clear of the station/brand altogether.
I suggest trying out both stations and run 3 tanks of each brand and track mileage. Then go with the one that gave the best results.
15 cents a gallon isn't a lot of money in the long run however it is better to have in your pocket than an oil companies.
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2006 Charger RT
Miles x 2 per oil filter

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#3257231 - 01/23/14 09:42 AM Re: How much better is Shell gas than Exxon? [Re: taurus_sable]
Bamaro Offline


Registered: 08/03/03
Posts: 1082
Loc: Balto.
For all practical purposes, zero difference.
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2009 Cobalt
1970 Camaro (original owner)
2009 Civic
2001 Escape
2014 Mazda3

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