The numbers of vehicles that require LRP has diminished to the point that it is no longer viable for fuel suppliers to produce, store and distribute the fuel, and for service stations to retail it. As of January 1 2005, the phase out of lead replacement petrol (LRP) commenced which has lead to many questions regarding the suitability of older (pre 1986) vehicles to be operated on unleaded fuels.

What this means for owners of older Mercedes-Benz passenger vehicles.
The phase out of LRP will affect motorists whose cars are built prior to 1986 and were formally operated on leaded fuel. Many Mercedes-Benz passenger vehicles manufactured before 1986 are suitable for operation solely on unleaded fuels.

Is my Mercedes-Benz affected?
Refer to the table below for a list of Mercedes-Benz passenger cars that are suitable for operation using unleaded fuel. The table refers only to Australian specification vehicles, imported through Mercedes-Benz Australia.

What should I do if my Mercedes-Benz is not compatible with unleaded fuel?
Most service stations that have phased out LRP will offer an AVSR (additive against valve seat recession) product in the service station shop. The AVSR additive will typically be packaged in small dispensers and can be injected or poured into the fuel tank.

Daimler AG has not conducted any tests on the effects of additives against valve seat recession (AVSR) in older vehicles. Changes made to the composition of commercially available fuels is a decision made by individual oil companies in consultation with state and federal authorities, and may well occur without direct consultation with all car manufacturers whose vehicles might be affected. As a consequence, Daimler AG accepts no responsibility for damages which may arise as a result of use or blending of any additives to commercially available fuels. The use of any additive is the sole responsibility of the vehicle operator.

Further information can be located on the respective fuel manufacturer’s internet site.

Please note: Mercedes-Benz passenger vehicles manufactured before July 1976 are not compatible with operation solely using unleaded petrol