Gasoline, diesel, and kerosene are the fuels most often used in drip torches. Recommended mixture ratios depend on personal preference and ambient temperatures. A common mixture is 60% diesel or kerosene and 40% gasoline when temperatures exceed 75ºF. When temperatures are below 75ºF, a 50:50 ratio may be used. Exceeding 50% gasoline is not recommended because of increased volatility. Greater diesel/kerosene mixtures may be useful under high fuel moisture conditions.