Mercedes-Benz 2000 SL 500 Operator's Manual download pdf (Page 283)

279Fuels, coolants, lubricants etc. - capacities

Technical

data

Instruments

and controls

Operation Driving

Instrument

cluster display

Practical hints Car care Index

Premium unleaded gasoline

Caution!

To maintain the engine‘s durability and performance,

premium unleaded gasoline must be used. If premium

unleaded is not available and low octane fuel is used,

follow these precautions:

• have the fuel tank filled only partially with unleaded

regular and fill up with premium unleaded as soon

as possible,

• avoid full throttle driving and abrupt acceleration,

• do not exceed an engine speed of 3000 rpm, if the

vehicle is loaded with a light load such as two

persons and no luggage,

• do not exceed

of maximum accelerator pedal

position, if the vehicle is fully loaded or operating in

mountainous terrain.

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.

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Mercedes-Benz 2000 SL 500 Operator's Manual Page 283

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