How many quarts of oil does a 1991 Pontiac Gran Prix hold?

The 1991 Pontiac Gran Prix oil capacity depends on the engine. You'll need to check your owner's manual or a reliable online resource like a repair manual specific to your Gran Prix's engine (e.g., a 3.1L V6 will have a different capacity than a 3.8L V6). The amount will typically be between 4 and 5 quarts, but checking your vehicle's documentation is essential for accuracy.