Century V6-181 30L (1983) Fuel Delivery: TOP TIER Detergent Gasoline (Canada)
![background image](/buick/century/v6-181_3.0l/Page-974001.png)
Fuel: Technical Service Bulletins
Fuel System - 'TOP TIER' Detergent Gasoline Information
INFORMATION
Bulletin No.: 04-06-04-047I
Date: August 17, 2009
Subject: TOP TIER Detergent Gasoline (Deposits, Fuel Economy, No Start, Power, Performance, Stall Concerns) - U.S. Only
Models:
2010 and Prior GM Passenger Cars and Trucks (including Saturn) (U.S. Only)
2003-2010 HUMMER H2 (U.S. Only)
2006-2010 HUMMER H3 (U.S. Only)
2005-2009 Saab 9-7X (U.S. Only)
Supercede:
This bulletin is being revised to add model years and additional sources to the Top Tier Fuel Retailers list. Please discard Corporate Bulletin Number
04-06-04-047H (Section 06 - Engine/Propulsion System). In Canada, refer to Corporate Bulletin Number 05-06-04-022F.
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 six automotive companies. All vehicles will benefit from using TOP TIER Detergent Gasoline over gasoline containing the "Lowest
Additive Concentration" set by the EPA. Those vehicles that have experienced deposit related concerns may especially benefit from the use of TOP
TIER Detergent Gasoline.
Intake valve: - 10,000 miles with TOP TIER Detergent Gasoline
Intake valve: - 10,000 miles with Legal Minimum additive
Gasoline Brands That Currently Meet TOP TIER Detergent Gasoline Standards
As of August 1, 2009, all grades of the following gasoline brands meet the TOP TIER Detergent Gasoline Standards:
-
Chevron
-
Chevron-Canada
-
QuikTrip
-
Conoco
-
Phillips 66
-
76