Is there a difference between different companies gas? I understand the different octane levels, but is 91 Shell different from 91 Esso, or 91 Petro Canada. I like gassing up at Canadian Tire because
#1 I am always there anyways
#2 I like the canadian Tire money

Is there any difference???

 

yes, different gas companies add different additive to there fuel.

 

This is maybe not exactly what you are asking, but check it out.
Dennis


Document ID# 1874166
2006 Chevrolet Cobalt
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Subject: Info - TOP TIER Detergent Gasoline (Deposits, Fuel Economy, No Start, Power, Performance, Stall Concerns) - Canada ONLY #05-06-04-022C - (11/28/2006)



Models: 2007 and Prior GM Passenger Cars and Trucks (Canada Only)

2007 and Prior Saab Vehicles (Canada Only)

2007 and Prior Saturn Vehicles (Canada Only)

2003-2007 HUMMER H2 (Canada Only)

2006-2007 HUMMER H3 (Canada Only)
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This bulletin is being revised to add additional sources to the TOP TIER Fuel Retailers list. Please discard Corporate Bulletin Number 05-06-04-022B (Section 06 - Engine/Propulsion System). In the U.S., refer to Corporate Bulletin Number 04-06-04-047G.
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A new class of fuel called TOP TIER Detergent Gasoline is appearing at retail stations of some fuel marketers. This gasoline meets detergency standards developed by four automotive companies. All vehicles will benefit from using TOP TIER Detergent Gasoline over gasoline containing the "Lowest Additive Concentration" recommended by the Canadian General Standards Board (CGSB). Those vehicles that have experienced deposit related concerns may especially benefit from use of TOP TIER Detergent Gasoline.

Top Tier Fuel Availability
Chevron was the first to offer TOP TIER Detergent Gasoline in Canada. Shell became the first national gasoline retailer to offer TOP TIER Detergent Gasoline across Canada. Petro-Canada began offering TOP TIER Detergent Gasoline nationally as of October 1, 2006.

Gasoline Brands That Currently Meet TOP TIER Detergent Gasoline Standards
The following gasoline brands meet the TOP TIER Detergent Gasoline Standards in all octane grades :

• Chevron Canada (markets in British Columbia and western Alberta)

• Shell Canada (nationally)

• Petro-Canada (nationally)

What is TOP TIER Detergent Gasoline?
TOP TIER Detergent Gasoline is a new class of gasoline with enhanced detergency and no metallic additives. It meets new, voluntary deposit control standards developed by four automotive companies that exceed the detergent recommendations of Canadian standards and does not contain metallic additives, which can damage vehicle emission control components.

Where Can TOP TIER Detergent Gasoline Be Purchased?
The TOP TIER program began in the U.S. and Canada on May 3, 2004. Some fuel marketers have already joined and introduced TOP TIER Detergent Gasoline. This is a voluntary program and not all fuel marketers will offer this product. Once fuel marketers make public announcements, they will appear on a list of brands that meet the TOP TIER standards.

Who developed TOP TIER Detergent Gasoline standards?
TOP TIER Detergent Gasoline standards were developed by four automotive companies: BMW, General Motors, Honda and Toyota.

Why was TOP TIER Detergent Gasoline developed?
TOP TIER Detergent Gasoline was developed to increase the level of detergent additive in gasoline. In the U.S., government regulations require that all gasoline sold in the U.S. contain a detergent additive. However, the requirement is minimal and in many cases, is not sufficient to keep engines clean. In Canada, gasoline standards recommend adherence to U.S. detergency requirements but do not require it. In fact, many brands of gasoline in Canada do not contain any detergent additive. In order to meet TOP TIER Detergent Gasoline standards, a higher level of detergent is needed than what is required or recommended, and no metallic additives are allowed. Also, TOP TIER was developed to give fuel marketers the opportunity to differentiate their product.

Why did the four automotive companies join together to develop TOP TIER?
All four corporations recognized the benefits to both the vehicle and the consumer. Also, joining together emphasized that low detergency and the intentional addition of metallic additives is an issue of concern to several automotive companies.

What are the benefits of TOP TIER Detergent Gasoline?
TOP TIER Detergent Gasoline will help keep engines cleaner than gasoline containing the "Lowest Additive Concentration" recommended by Canadian standards. Clean engines help provide optimal fuel economy and engine performance, and also provide reduced emissions. Also, the use of TOP TIER Detergent Gasoline will help reduce deposit related concerns.

Who should use TOP TIER Detergent Gasoline?
All vehicles will benefit from using TOP TIER Detergent Gasoline over gasoline containing the "Lowest Additive Concentration" recommended by Canadian standards. Those vehicles that have experienced deposit related concerns may especially benefit from use of TOP TIER Detergent Gasoline.

 

hell ya there is. Some people say im crazy, but i swear i can feel a difference in how the car runs from one brand to the other. Shell and Chevron are great fuels imo. If i run anything other than those two the car just doesnt feel 100%, and on some gasses like Mobil and Citgo i actually get more knock than when i run Shell or Chevron.

 

looks like im gonna start filling up with shell

 

I always use Shell but I have to admit I fill up with 89 octane more often than 91, seen no difference in fuel economy or performance so far.

 

OK... who has TOP TIER on the ILLINOIS?

 

its because u keep switching stay with 1 of them for lets say a month and u will feel it

 

i use 89 octane w Circle k and then once i tried 89 octane with BP and the 89 octane at BP gas felt like 87 octane from Circle K havent tried shell and there is no chevron out here, but circle is giving me more acceleration than BP there is deffinately a difference between gas stations

 

I'll try, I usually fill up every 2 weeks or so

 

husky/mohawk are the cleanest burning, i think they have ethonol or something

 

Red Rabbit FTW!

 

Anyone know anywhere in Canada that runs 94 octane?? Will i notice a difference? Can you reach a point where the octane levele can be too high???

 

i tried the 94 octane in petro-canada but i didn't see a big differance with the 91

 

Ultra 94

 

all premiums are 93 where I live. I fill up wherever I can find gas at the time the "LOW FUEL" indicator comes on, lol. Texaco, Shell, BP, Sheetz..........wherever. If I had a choice of what gas station was near me every time the LOW FUEL indicator came on though, i'd like to fill up at BP or Shell every time. Car seems to run better using those fuels.