Owner's Manual
Page 289
... occurs, return to determine the cause of failure. Some gasolines that are not reformulated for diagnosis to your authorized Pontiac dealer for better vehicle performance and engine protection. General Motors does not recommend the use of fuels used , spark...octane-enhancing additive called methylcyclopentadienyl manganese tricarbonyl (MMT); It is recommended that the gasoline meet specifications which were developed by the American Automobile Manufacturers Association (AAMA) and endorsed by your warranty. If fuels containing MMT are not available in the Index. Canada Only ...
... occurs, return to determine the cause of failure. Some gasolines that are not reformulated for diagnosis to your authorized Pontiac dealer for better vehicle performance and engine protection. General Motors does not recommend the use of fuels used , spark...octane-enhancing additive called methylcyclopentadienyl manganese tricarbonyl (MMT); It is recommended that the gasoline meet specifications which were developed by the American Automobile Manufacturers Association (AAMA) and endorsed by your warranty. If fuels containing MMT are not available in the Index. Canada Only ...