Subject: | TOP TIER Detergent Gasoline Information and Available Brands (Deposits, Fuel Economy,No Start, Power, Performance, Stall Concerns) – Canada ONLY | |
Models: | 2014 and Prior GM Cars and Trucks (Canada Only) | |
This bulletin has been revised to add the 2014 model year. Please discard CorporateBulletin Number 05-06-04-022I. In the U.S., refer to the latest version of CorporateBulletin Number 04-06-04-047.
A new class of fuel called TOP TIER Detergent Gasoline is appearing at retail stationsof some fuel marketers. This gasoline meets detergency standards developed by sixautomotive companies. All vehicles will benefit from using TOP TIER Detergent Gasolineover gasoline containing the “Lowest Additive Concentration” recommended by the CanadianGeneral Standards Board (CGSB). Those vehicles that have experienced deposit relatedconcernsmay especially benefit from use of TOP TIER Detergent Gasoline.
(1) | Intake valve: 16,093-km (10,000-mi) with TOP TIER Detergent Gasoline |
(2) | Intake valve: 16,093-km (10,000-mi) with Minimum Additive recommended by the CGSB |
Chevron was the first to offer TOP TIER Detergent Gasoline in Canada. Shell becamethe 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. Esso began offering TOP TIER Detergent Gasoline in May of 2010.
essencesdtergentesGasoline 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)Esso-Canada (nationally)What is TOP TIER Detergent Gasoline-
TOP TIER Detergent Gasoline is a new class of gasoline with enhanced detergency andno metallic additives. It meets new, voluntary deposit control standards developedby six automotive companies that exceed the detergent recommendations of Canadianstandards and does not contain metallic additives, which can damage vehicle emissioncontrol 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 marketershave already joined and introduced TOP TIER Detergent Gasoline. This is a voluntaryprogram and not all fuel marketers will offer this product. Once fuel marketers makepublic announcements, they will appear on a list of brands that meet the TOP TIERstandards.
Who developed TOP TIER Detergent Gasoline standards-
TOP TIER Detergent Gasoline standards were developed by six automotive companies:BMW, General Motors, Honda, Toyota, Volkswagen and Audi.
Why was TOP TIER Detergent Gasoline developed-
TOP TIER Detergent Gasoline was developed to increase the level of detergent additivein gasoline. In the U.S., government regulations require that all gasoline sold inthe U.S. contain a detergent additive. However, the requirement is minimal and inmany cases, is not sufficient to keep engines clean. In Canada, gasoline standardsrecommend adherence to U.S. detergency requirements but do not require it. In fact,many brands of gasolinein Canada do not contain any detergent additive. In order to meet TOP TIER DetergentGasoline standards, a higher level of detergent is needed than what is required orrecommended, and no metallic additives are allowed. Also, TOP TIER was developed togive fuel marketers the opportunity to differentiate their product.
Why did the six automotive companies join together to develop TOP TIER-
All six corporations recognized the benefits to both the vehicle and the consumer.Also, joining together emphasized that low detergency and the intentional additionof 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 containingthe “Lowest Additive Concentration” recommended by Canadian standards. Clean engineshelp provide optimal fuel economy and engine performance, and also provide reducedemissions. Also, the use of TOP TIER Detergent Gasoline will help reduce deposit relatedconcerns.
Who should use TOP TIER Detergent Gasoline-
All vehicles will benefit from using TOP TIER Detergent Gasoline over gasoline containingthe “Lowest Additive Concentration” recommended by Canadian standards. Those vehiclesthat have experienced deposit related concerns may especially benefit from use ofTOP TIER Detergent Gasoline. More information on TOP TIER Detergent Gasoline can befound at this website, http://www.toptiergas.com/.
GM bulletins are intended for use by professional technicians,NOT a "do-it-yourselfer". They are written to inform thesetechnicians of conditions that may occur on some vehicles, or toprovide information that could assist in the proper service of avehicle. Properly trained technicians have the equipment,tools, safety instructions, and know-how to do a job properly andsafely. If a condition is described, DO NOT assume that thebulletin applies to your vehicle, or that your vehicle will havethat condition. See your GM dealer for information on whetheryour vehicle may benefit from the information. | WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION |
Radiator Outlet Hose Replacement (LEA) Engine Cooling Radiator
Special ToolsJ 38185Hose Clamp PliersRemoval ProcedureDrain the cooling system. Refer toCooling System Draining and Filling.Raise and support the vehicle. Refer toLifting and Jacking the Vehicle.Disengage tension on the radiator outlet hoseclamp-(1) at the radiator usingJ 38185Hose Clamp Pliers.Remo ...