CITGO has nearly 6,000 branded retail outlets in 27 states and sells approximately 6.5 billion gallons of refined products. We know gasoline. That’s why we can offer you some help in choosing the grade of gasoline that’s right for your vehicle.

Good Gas. Guaranteed.
We guarantee reliable, high-quality fuel that meets the performance needs of your engine.
That is what we deliver in all grades of CITGO gasoline. Good Gas. Guaranteed.

If you would like more information, please contact us at goodgas.guaranteed@citgo.com.

To meet our Good Gas Garage Guys, click here.

Gasoline specifications have evolved along with automobile technology. Fuels have become cleaner burning, been blended to release greater energy per gallon and have become safer for the environment and the public.

CITGO is committed to developing and marketing the cleanest, most economical fuel its refineries can produce. In addition to making fuels better, CITGO spends millions of dollars annually on improved controls at its facilities to reduce emissions associated with the making and marketing of petroleum products.

Gasoline Grade
So which grade of CITGO gasoline is right for you?

• Your first reference should be your vehicle Owner’s Manual. Each auto manufacturer provides the recommended minimum octane for normal operation of the vehicle.

• As a general rule of thumb, however, use the octane grade which prevents your engine from knocking or pinging (engine knock is caused by the pre-ignition of fuel as it’s compressed in the cylinder, milliseconds before the normal spark plug firing).

CITGO provides three different octane grades of gasoline – complete with our proprietary high-performance detergent additive. The detergent additive that you will find in all grades of CITGO gasoline is designed to help keep your engine clean and performing well. This additive performance occurs without you having to worry about it. The detergent additives in all grades of CITGO gasoline comply with the Environmental Protection Agency’s (EPA’s) additive requirements.

Looking for the closest CITGO location? We can show you the way.