Get your stubborn engine running with CRC Jump StartA(R) starting fluid with lubricity. It&';s the perfect solution for starting engines, whether diesel or gasoline fuelled. In a variety of weather conditions, including extreme cold or humidity, CRC Jump StartA(R) is effective and safe to apply. Faced with an emergency jump-start? CRC is the solution you need. For use in both gasoline & diesel engines. Spray in air intake or air cleaner while engine is off.