SLK 230 (170.447) L4-2.3L SC (111.973) (2000)
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Fuel: Application and ID
Fuel Requirements
Fuel Requirements:
Use only Premium unleaded meeting ASTM standard D 439:
The octane number (posted at the pump) must be 91 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, IPA, IBA and TBA can be used provided the ratio of any one of these oxygenates to gasoline
does not exceed 10%, MTBE not to exceed 15%.
The ratio of Methanol to gasoline must not exceed 3% plus additional cosolvents.
Using mixtures of Ethanol and Methanol is not allowed. 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.
