XFT is a comprehensive fuel additive that provides 4 key benefits: improved fuel economy, prolonged engine life, reduced emissions, and increased performance. It comes in a convenient bottle with a built-in measuring device making it easy to put in the required amount of product. Just squeeze in the right amount, pour it in your tank, and enjoy the benefits! 1/4 ounce (7.5 mL) of XFT treats up to 20 gallons (75 L) of fuel so choose the size that fits your needs.