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Gas mileage on a 89 Pontiac grand prix?

The gas mileage of a 1989 Pontiac Grand Prix varied significantly depending on the engine size and the driver's habits. There wasn't a single figure. You'd likely find a range of:

* City driving: 15-18 mpg (miles per gallon) This is a rough estimate and could be lower depending on traffic and driving style.

* Highway driving: 20-25 mpg Again, this is an estimate, and better fuel economy is possible with consistent highway speeds.

To get a more precise estimate, you should look up the EPA fuel economy estimates specifically for the engine size of the 1989 Grand Prix you're interested in. The engine options for that year included V6 and V8 options, and the V8 would consume considerably more fuel.

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