Quality Fuel

More quality in every drop.

Conoco® gas has 3 times more detergent additive than the minimum required by the EPA and 30% more than the TOP TIER® Detergent Gasoline standard recommended by major car manufacturers.* Learn how Quality Fuel can undo the side effects of inferior gas.

*Based on average proprietary additive treat rate. BMW, General Motors, Honda, Toyota, Volkswagen, Mercedes-Benz, and Audi sponsor the TOP TIER® Detergent Gasoline standard. TOP TIER® is a registered trademark of General Motors. © 2018 Phillips 66 Company. All rights reserved.


Carbon deposits are a natural byproduct of the fuel burning process. They can build up on your engine’s intake valves, on the piston rings and in the combustion chamber – robbing your engine of performance.

More deposits.
More problems.

If left untreated, deposits can cause a number of other problems. They can increase emissions, causing your car to fail state inspections. They can also absorb fuel, decreasing fuel mileage.

Quality Fuel is the perfect solution.

The detergent in Conoco quality fuel is specially formulated to remove harmful fuel deposits. It helps your engine run like new in as few as five tanks!

A cleaner engine for a greener world.

Not only is Conoco quality fuel better for your car, it’s better for the environment - because a clean engine burns less fuel and emits lower emissions.

Where to fill-up