National Staff Greg G. Posted March 28, 2013 National Staff Share Posted March 28, 2013 Technical Bulletin (3-27-13): All Rotary Engine Vehicles: Rotary engine vehicles may pre-mix any commercially available oil designed for 2-stroke engines. c. Engine 1) Fuel: Any grade of commercially available unmodified gasoline or diesel--all octane levels of retail available race gas are permitted. No “home brewed” methanol/ethanol/alcohol mixtures are permitted. Methanol injection systems are illegal. Retail available E-85 is permitted. Fuel additives are prohibited, with the exception that rotary engine vehicles may add any commercially available oil designed for two-stroke engines as a "pre-mix." Quote Link to comment Share on other sites More sharing options...
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