FOR CONCERNS OF HARD START/NO START, START/STALLS OR HESITATION, MAKE SURE THE TANK CONTAINS FRESH 87 OCTANE FUEL FROM A HIGH VOLUME SERVICE STATION IN YOUR AREA. THIS CONCERN MAY BE CAUSED BY SUMMER BLEND FUELS WITH LOW RVP (REID VAPOR PRESSURE) WHICH DOES NOT VAPORIZE WELL IN COLD WEATHER.