Mercedes-Benz GLK-Class: Fuel requirements
Use only premium-grade unleaded gasoline. The octane number should be at least 91. Details can be found on the gas pump. The octane number is the average value of the Research Octane Number (RON) and the Motor Octane Number (MON): (RON + MON) / 2, also known as knock resistance. Reformulated Gasoline (RFG) and/or unleaded gasoline with additives can be used if the concentration of the additives in the fuel does not exceed 10%, e.g.:
- Ethanol
- TAME
- ETBE
- IPA
- TBA
For MTBE, the concentration should not exceed 15%.
The concentration of methanol in gasoline including other additives must not exceed 3%. Using mixtures of methanol and ethanol is not permitted. Gasohol, a mixture of 10% ethanol and 90% unleaded gasoline, can be used. All of these mix fuels must fulfill the fuel requirements, e.g.:
- knock resistance
- boiling point
- vapor pressure
Premium-grade unleaded gasoline
To ensure the longevity and full performance of the engine, only premiumgrade
unleaded gasoline may be used. If there is no premium-grade unleaded gasoline available
and regular-grade unleaded ...
Additives in gasoline
One of the main problems of poor fuel quality is the forming
of deposits that are caused during the gasoline combustion process. Mercedes-Benz
recommends that you use fuel brands that have the add ...
See also:
Check Fuel Cap Message
If your fuel fill cap is loose or
missing, a ‘‘CHECK FUEL CAP’’
message appears on the information
display after you start the engine. ...
Split tailgate
WARNING:
● It is dangerous to drive with the tailgate (upper gate and lower gate) open, since
carbon monoxide (CO) gas can enter the cabin. You cannot see or smell CO. It can
cause unconsc ...
Luggage net
To keep items from shifting in the cargo area, you can use the four rings located
in the cargo area to attach the luggage net.
NOTICE Do not put fragile, bulky or an excessive quantity of items i ...