Bio-Rotary Racing Premix is designed specifically for rotary engines. This technology addresses the three major concerns in the rotary community: (1.) proper lubrication, (2.) issues with carbon buildup, and (3.) premix compatibility with any type of fuel. It also protects against corrosion in fuel systems, and has a fuel conditioner built into the product. Renewable Lubricants offers the only sustainable, carbon negative, (green) premix designed for high performance rotary engines. Compatible and tested with ALL fuel types (Gasoline, Ethanol Blends, and Methanol). Lowers emissions (burns clean) and improves fuel economy. NO EXHAUST SMELLS! Conditions and cleans while lubricating apex seals. Provides excellent protection against wear, tear, and corrosion. Improves engine performance and efficiency. Premium synthetic oil formulated for high-performance racing such as Mazda RX-7 or Mazda RX-8 engines. Tested on and off the track for stock and boosted rotary engines. Stop buying 2 cycle oil (2 stroke oil) for your Rotary Engine and switch to a premium full synthetic rotary premix designed for Mazda Rotary engines. No more carbon build-up on plugs or engine parts. Meets or exceeds industry standards for any Mazda Rotary Engine. Lubricates entire rotor and housing with a sustainable, carbon negative formulation allowing for longer trouble-free engine life.