Dark SUV driving on a snowy mountain road with a roof rack, surrounded by snow-covered hills and wooden fences under a partly cloudy sky.

TOP TIER® Fuel

Chart comparing detergent additive levels across three gasoline grades: Phillips 66 Performance Gas with four full drops, TOP TIER standard with three full drops and one partial, and EPA-mandated with one full drop and three empty drops.

Raising the bar with every drop.

Good news for drivers everywhere – our fuel has 3 times more detergent than the minimum required by the EPA and 30%* more than the minimum specified in the TOP TIER® Detergent Gasoline standard recommended by major car manufacturers.

*at participating locations

A person's hand holding the shifting knob inside a vehicle while seated in the driver's area.

What’s the deal with deposits?

Deposits can build up on fuel injectors and intake valves – robbing your engine of performance.

An adult man in a white shirt and a young child in front of a car with an open hood.

More deposits.
Less performance.

If left untreated, deposits can cause a number of other problems. They can increase emissions, decrease fuel economy, and reduce overall engine performance.

Person charging an electric car at an electric car charging station.

Detergent defeats deposits.

The detergent in Performance Gas is specially formulated to help remove harmful fuel deposits. It’s so effective, your engine can be running like new in as few as five tanks!

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