A1 or auto diesel?
The Centurion is certified for both types of fuel with the same Thielert warranty (2400 hours or 12 years whichever comes first). Jet-A1 and auto diesel may be mixed in any proportion in the tank. The aircraft flight manual indicates minimum temperatures in the tank before take off: -30C for Jet-A1 and -0C for auto diesel. -35C and -5C during flight. Fuel circuit is designed to warm up the fuel in the tank while engine is running and temperature in the tank is shown is the instrument panel. For more details, see www.centurion-engines.com Centurion 2.0 FAQ Engine characteristics.