Optifuel OP1001 - Optimix RTR Fuel 16% Nitro 15% Oil 1LOPTIMIX READY TO RUN 16% FUEL 1L OPTIMIX RTR 16 is supplied as a 1 liter container and is 16% (by weight) nitromethane with 15% fully synthetic oil from KLOTZ. This is a very high performance RTR fuel for general use not race applications. The tuning band on RTR fuels are wider and therefore a little less critical. Content: 1L RTR fuel with 16% Nitromethane and 15% Klotz Synthetic oil Also available in 5L bottles Optifuel is the product of extensive