Fuel Requirements
1. Gasoline EnginesUse only unleaded gasoline (in vehicles with catalyst) meeting ASTM standard D 439. The octane number (posted at the pump) must be 87 min. It is an average of both the Research (R) octane number and the Motor (M) octane number: (R+M)/2. This is also known as ANTI-KNOCK INDEX.
Unleaded gasoline containing oxygenates such as Ethanol, MTBE, IPA, IBA and TBA can be used provided the ratio of either one of these oxygenates to gasoline does not exceed 10%. The ratio of Methanol to gasoline must not exceed 3%. Methanol must also contain a sufficient amount of cosolvent.
Using mixtures of Ethanol and Methanol is not allowed. MTBE may, however, be added up to 15%. Gasohol, which contains 10% Ethanol and 90% unleaded gasoline, can be used. These blends must also meet all other fuel requirements such as resistance to spark knock, boiling range, vapor pressure, etc.
2. Diesel Engines
Use only commercially available vehicular diesel fuels No. 2 or No. 1 (ASTM D975 No. 2-D or No. 1-D).
For information on cold weather operation, refer to the respective Owner's Manual or Service Information MBNA 00/7, November 1982.
CAUTION! Beginning with 1985 models, California-version Turbo diesel vehicles are equipped with a Trap Oxidizer. If non-approved fuel additives are used the Trap Oxidizer could be damaged, resulting in severe engine power loss and expensive repairs not covered under the new vehicle warranty. For additional information, refer to Service Information MBNA 00/23, October, 1984.
3. Approved Additives - All Diesel Engines
Product Name Supplier
Biobor Diesel Doctor United States Borax and Chemical Corp.,
Los Angeles, CA
Chevron Techron Diesel
Fuel Additive Chevron USA, Inc., San Francisco, CA
Heet Auto Diesel Fuel Treatment DeMert and Doughtery, Inc., OakBrook, IL