R 6SR is a leaded racing gasoline designed for racing engines requiring a leaded high quality and high octane racing fuel. It is specially developed for engines requiring lead to lubricate the valves and valve seats. R 6SR provides protection against knock up to compression ratios as high as 13:1. Can be used without any special setup being required, although fine tuning will produce the best results. Available in 25 and 200 litre drums.