Vapour Oil should be used in very small quantities after every flight, race, practice session, trial or competition to ensure that moisture or humidity does not react with the internal and external bare metal surfaces of the valuable and vulnerable engine to cause corrosion.

A few drops into the carburettor is all that is needed to block corrosion.

For short term storage put a few drops into the carburettor and turn the crankshaft backwards (clockwise) till you feel a slight compression and leave in that position.

This closes the exhaust port and the carburettor to seal the whole engine.

For long term storage seal in a polythene bag or a sandwich container so that the beneficial effects will last until the next time the engine is used.

Especially formulated to work with Pro Synth 2000 fuel.