Reply To: E10 Fuel and Plastic Tanks Great British Handcrafted Motorcycles › Forums › CCM Motorcycles – General Discussion › E10 Fuel and Plastic Tanks › Reply To: E10 Fuel and Plastic Tanks 7 April, 2021 at 8:50 pm #8738 martin G10Member Hi, everyone E10 fuel is a 10% mix allowed (diesel is 20%), 5% mix petrol has been allowed for a few years now and started the plastic problem , the spitfire tank is made by acerbis , should have some general info on they’re site. regards martin