Oil and additive specialist LIQUI MOLY has introduced two new gearbox oils in viscosities SAE 90 and SAE 140 especially aimed at classic cars and specialist applications. 

The company says gearbox oils formulated for modern vehicles can cause problems for the gear trains in classic cars. Newer oils are generally too low viscosity for old gearboxes. Also many classic car gearboxes, particularly if built before 1950, feature non-ferrous metals, such as bronze as well as white metals or alloys. These materials cannot tolerate the additives in modern gearbox oils. Oliver Kuhn, Assistant Laboratory manager for lubricants at LIQUI MOLY says, "They attack the metals. Also, the additives in the API classes GL 5 and 4 are simply oversized for classic cars."

LIQUI MOLY Classic gearbox oils meet the needs of older gearboxes while also utilising the latest advances in additive technology. Classic gearbox oil SAE 140 is suitable for manual gearboxes of classic vehicles and axle drives with low loads, the SAE 90 can only be used in manual gearboxes.

LIQUI MOLY recommends both lubricants for vehicles, motors and transmissions requiring the following specifications or genuine part numbers: API GL1, API GL 2, API GL 3. Both Classic lubricants are available in 1 litre containers.