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#2456581 - 12/08/11 05:38 AM Shell vs Mobil/Exxon
smc733 Offline


Registered: 11/14/11
Posts: 204
Loc: Boston, MA, USA
Hi all,

I'm deciding on a new fuel for my 2011 corolla I will be getting in about a week.

These are the only top-tier stations in my area, with a few more Mobil than Shell stations. However, I hear Shell is better, because it has PEAs, is it true? I don't think Mobil has PEAs and I heard PBAs can actually cause their own deposits...

So I was thinking
-Shell whenever I can as soon as I see 1/2 tank
-Mobil/Exxon if I need it

-Anything else on my long trips that has a brand name, then Shell afterwards (top off before trip).

Thoughts?
_________________________
2011 Toyota Corolla LE
Toyota 0W-20 + OEM Filter

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#2456600 - 12/08/11 06:21 AM Re: Shell vs Mobil/Exxon [Re: smc733]
d00df00d Offline


Registered: 10/20/05
Posts: 8799
Loc: PA
If it's Top Tier, I sincerely doubt it'll go badly for you. We're not talking about Joe's Gas Shack here.

My fill ends up being about 50% Exxon/Mobil, 40% Shell, and 10% other name brand (when I can't find either of the other two).
_________________________
2011 Mazda RX-8 R3
Castrol GTX 5w-20

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#2456608 - 12/08/11 06:48 AM Re: Shell vs Mobil/Exxon [Re: smc733]
Donald Offline


Registered: 03/21/04
Posts: 12608
Loc: Upstate NY
I only know Chevron has some Techron cleaner as an additive and thus its a PEA additive. Not sure about Shell. I doubt PEAs have deposits as techron is about the best cleaner you can add to your gas. Mobil has good gas also.

I also like to see how new the pumping area looks. Thus how new and clean his tanks might be.
_________________________
2001 Jeep Grand Cherokee Laredo 4.0 - Rotella T6 & M1
1999 Dodge Ram 2500 w/Cummins - Rotella T6 & M1
Amsoil ATF in both vehicles & Magnefine filter.

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#2456609 - 12/08/11 06:49 AM Re: Shell vs Mobil/Exxon [Re: smc733]
Bill in Utah Offline



Registered: 11/11/02
Posts: 12772
Loc: UT
Over thinking this a little bit.

Buy gas at a gas station that sees a lot of business. Fresh gas is more important than tier this or PEA that.

My 2005 Corolla has close to 225,000 miles on it and sees gas when the light comes on. Never had a problem with it, runs great, still get well over 40 mpg and passes smog with ease.

1986 Jetta with 394,000 miles on it. Ran fine to the end and never had an injector off of it.

Those are 2 examples of just buying gas and getting on with it.

Take care and enjoy the new ride.

Bill

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#2456622 - 12/08/11 07:13 AM Re: Shell vs Mobil/Exxon [Re: smc733]
JavierG Offline


Registered: 06/11/11
Posts: 1083
Loc: Fresno, CA
I use Shell whenever I can but sometimes even use Arco or other lower tier fuels (although most of the time I alternate with Vons, Costco, 76). You should have no problems if all you plan to use is Shell and/or Mobil/Exxon. If no top tier fuel is available you can always use Techron, Regane, MMO, etc. as a supplement, when necessary.
_________________________
2007 Honda Ridgeline RTX - 81k mi - Valvoline Durablend 5W-20, Bosch D+
1995 Acura Legend LS Coupe - 153k mi - NextGen MaxLife 10W-30, Bosch Premium

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#2456631 - 12/08/11 07:30 AM Re: Shell vs Mobil/Exxon [Re: d00df00d]
dparm Offline


Registered: 04/19/10
Posts: 11755
Loc: Lombard, IL
Originally Posted By: d00df00d
If it's Top Tier, I sincerely doubt it'll go badly for you. We're not talking about Joe's Gas Shack here.

My fill ends up being about 50% Exxon/Mobil, 40% Shell, and 10% other name brand (when I can't find either of the other two).



Quoted for truth.
_________________________
2011.5 BMW M3 saloon ZCP
der stärkste buchstabe der welt
Mobil 1 0w40 + Mahle OX 254D3

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#2456647 - 12/08/11 07:49 AM Re: Shell vs Mobil/Exxon [Re: Bill in Utah]
Trav Offline


Registered: 11/20/06
Posts: 8445
Loc: MA, Mittelfranken.de
How many of those miles were on E10? I have to wonder if the VW would have such reliability running ethanol laced fuel.
I get a lot of VW injectors with flow issues but not many Toyota's, the cars that get the most use seem to have the least amount of issues.
_________________________
ASE L1, Master. Deutsch Meisterbrief.

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#2456652 - 12/08/11 07:51 AM Re: Shell vs Mobil/Exxon [Re: Bill in Utah]
Artem Offline


Registered: 10/30/10
Posts: 4293
Loc: Florida
Originally Posted By: Bill in Utah
Over thinking this a little bit.

Buy gas at a gas station that sees a lot of business. Fresh gas is more important than tier this or PEA that.

My 2005 Corolla has close to 225,000 miles on it and sees gas when the light comes on. Never had a problem with it, runs great, still get well over 40 mpg and passes smog with ease.

1986 Jetta with 394,000 miles on it. Ran fine to the end and never had an injector off of it.

Those are 2 examples of just buying gas and getting on with it.

Take care and enjoy the new ride.

Bill


I know it might not be as important for regular cars, requiring regular gas but it's a different story for an engine requiring 93 Octane.

I once filled up at a clean looking gas station without a name brand, in the middle of nowhere and literally as soon as i felt the gas station, my engine was bucking and shuddering, not able to rev past 3,500 rpm (Limp Mode) with a Check Engine light.

I had to Limp it for the next 300 miles, fill up with decent gas, run that tank dry. Then i finally got home where i added either Redline or Amsoil fuel system cleaners for the next several tanks of gas as the engine slowly began to get back to normal.

I don't know what was in that gas, or whether it was even 93 Octane but after that incident that could have cost me my modified Engine, I only fill up @ 90% Shell and 10% other name brand gas stations.

Just my 2cents
_________________________
2011 Toyota Avalon Limited 3.5L V6 - 45k - 5w30 Mobil 1

06 Scion tC 112k - 5w30 Valvoline NextGen

2014 Mazda 3 hatch i Touring 6spd - Mobil 1 0w30

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#2456658 - 12/08/11 08:02 AM Re: Shell vs Mobil/Exxon [Re: smc733]
Clevy Offline


Registered: 11/11/10
Posts: 6508
Loc: Saskatoon canada
My mustang(4.6 bored and stroked to 5.1,9.5-1 compression) runs best off shell v-power here in Saskatchewan however when I go to British Columbia I buy chevron. The car runs like a rocket with chevron premium.
The Harley is picky too so shell premium for it as well. My chev 4x4 doesn't care what goes in it so I go to co-op
_________________________
2006 Charger RT
Miles x 2 per oil filter

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#2456685 - 12/08/11 08:35 AM Re: Shell vs Mobil/Exxon [Re: Clevy]
daman Offline


Registered: 09/23/06
Posts: 10416
Loc: Bad Axe, MI
How can one find Top Tier stations in there area?
_________________________
"Always"....Mobil 1

Current fill: AFE 0w30

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#2456698 - 12/08/11 08:41 AM Re: Shell vs Mobil/Exxon [Re: Artem]
Bill in Utah Offline



Registered: 11/11/02
Posts: 12772
Loc: UT
Originally Posted By: Trav
How many of those miles were on E10? I have to wonder if the VW would have such reliability running ethanol laced fuel.
I get a lot of VW injectors with flow issues but not many Toyota's, the cars that get the most use seem to have the least amount of issues.



It spent its last 100k miles in California and their reformulated "stuff" they call gas.

But for the majority of the close to 300k miles from April to November it saw normal fuels. We used to have OXY fuel Nov 1st till April 1st.

The fuel here is now up to 10% ethanol except the "clean" fuel at some stations which is premium only.

Agree that driving a vehicle is MUCH better than it sitting ( sadly something that my 2004 GMC does) but if you are putting so much "bad" fuel (which some members here call anything other than top tier "bad") through the injectors would not I see deposits and other drive ability issues?

Originally Posted By: Artem


I know it might not be as important for regular cars, requiring regular gas but it's a different story for an engine requiring 93 Octane.

I once filled up at a clean looking gas station without a name brand, in the middle of nowhere and literally as soon as i felt the gas station, my engine was bucking and shuddering, not able to rev past 3,500 rpm (Limp Mode) with a Check Engine light.

I had to Limp it for the next 300 miles, fill up with decent gas, run that tank dry. Then i finally got home where i added either Redline or Amsoil fuel system cleaners for the next several tanks of gas as the engine slowly began to get back to normal.

I don't know what was in that gas, or whether it was even 93 Octane but after that incident that could have cost me my modified Engine, I only fill up @ 90% Shell and 10% other name brand gas stations.

Just my 2cents



But the ORIGINAL poster asking the question has a 2011 Corolla. Hardly something that NEEDS premium.

So ALL of our comments should be answering HIS question.

Also another reason why I stay away from vehicles that NEED premium.

I'm sure getting bad fuel is something that happens here and there. Thankfully in your case it did not cause any damage. And when on the road its hard to know what is doing a lot of sales. Back in 2009 we drove across the US (almost 6000 miles in 15 days) and everything I bought ran fine.

And trust me the Subaru would let you know if you got anything less than good. It would ping at times with a little shake at idle.

Take care, bill

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#2456714 - 12/08/11 08:55 AM Re: Shell vs Mobil/Exxon [Re: Bill in Utah]
needsducktape Offline


Registered: 05/08/11
Posts: 751
Loc: Pittsburgh PA
Originally Posted By: Bill in Utah
Over thinking this a little bit.

Buy gas at a gas station that sees a lot of business. Fresh gas is more important than tier this or PEA that.

My 2005 Corolla has close to 225,000 miles on it and sees gas when the light comes on. Never had a problem with it, runs great, still get well over 40 mpg and passes smog with ease.

1986 Jetta with 394,000 miles on it. Ran fine to the end and never had an injector off of it.

Those are 2 examples of just buying gas and getting on with it.

Take care and enjoy the new ride.

Bill


Bingo! I can't tell you how many times I have seen the same fuel truck at several name brand gas stations in my town...
_________________________
2001 Accord EX
145,000 miles
5-speed manual
MC 5-20



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#2456741 - 12/08/11 09:20 AM Re: Shell vs Mobil/Exxon [Re: needsducktape]
tenderloin Offline


Registered: 12/16/02
Posts: 5897
Loc: Huntington Beach, CA
"Bingo! I can't tell you how many times I have seen the same fuel truck at several name brand gas stations in my town..."

If you are suggesting that there is no difference between gasoline and in your area they are all getting the same regardless of brand, then I would make a call. The misrepresentation as you described is no small matter.

Another possibility is the same tanker delivers to independents and name brand stations carrying different gas at different times. Delivers to the independents, goes back to the rack, loads up with gasoline with Chevrons additives, delivers that, then Shell etc.

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#2456759 - 12/08/11 09:39 AM Re: Shell vs Mobil/Exxon [Re: smc733]
Durango Offline


Registered: 02/15/07
Posts: 2003
Loc: Los Angeles, California
Originally Posted By: smc733
Hi all,

I'm deciding on a new fuel for my 2011 corolla I will be getting in about a week.

These are the only top-tier stations in my area, with a few more Mobil than Shell stations. However, I hear Shell is better, because it has PEAs, is it true? I don't think Mobil has PEAs and I heard PBAs can actually cause their own deposits...

So I was thinking
-Shell whenever I can as soon as I see 1/2 tank
-Mobil/Exxon if I need it

-Anything else on my long trips that has a brand name, then Shell afterwards (top off before trip).

Thoughts?


smc733,

Both gasolines you mentioned are considered to be Top Tier but you should know that Shell gas isn't really mad by Shell. That part of the business is owned and made by Tesorio as I heard it. Mobil is still mad by Mobil.

Shell gas has their additive called "Nirogen" enriched and Mobil gas as I hear it has the most PEA additive in their product.

Mail Clerk

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#2456812 - 12/08/11 10:21 AM Re: Shell vs Mobil/Exxon [Re: smc733]
NightRiderQ45 Offline


Registered: 03/24/08
Posts: 929
Loc: Houston, TX
Just fill up and stop burning your brain cells about something that doesn't really matter buddy.
_________________________
2002 Lexus GS300 120k My NEW baby
1998 FGY33 Infiniti Q45 257k....RIP


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