2003 Pontiac Grand Prix GT Engine Oil Specifications

by Charles Green

The 2003 Pontiac Grand Prix GT is a sports sedan powered by a 3.8-liter V-6 engine paired with a four-speed automatic transmission. To keep this engine running properly, oil change recommendations should be followed, including oil grade and capacity specifications.

Fluid Specifications

The Pontiac Grand Prix GT requires 4.6 quarts of motor oil. Under all temperature conditions 5W-30 motor oil should be used. Signature Series 0W-30 100 percent synthetic motor oil is also acceptable for this model, according to Amsoil.com.


This car is rated at 200 horsepower at 5,200 rpm and 225 pound-feet of torque at 4,000 rpm. The 2003 Pontiac Grand Prix GT, a front-wheel-drive vehicle, has a towing capacity of 1,000 lbs.

Fuel Economy

The 2003 Pontiac Grand Prix GT is rated at 17 miles per gallon in the city and 27 mpg on the highway, with a combined 20 mpg, according to the Environmental Protection Agency. This vehicle runs on regular gasoline.

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