Having problems with your Pontiac Grand Prix ?
I just want to know if its okay to use regular unleaded gas in my 2004 Pontiac Grand Prix GT, vin# is 2G2WP522241115621
Usually its fine to use regular unleaded gasoline in most cars anymore, but to be safe i would look in your owners manual and see what the manufacturer specifies, most cars now have whats called a knock sensor on the engine with regular gas the knock sensor detects engine knock from lower octane gases and tells the computer how to adjust ignition timing until engine knock disappears, being all cars have a knock sensor on them it usually is safe to use regular gas unless a turbo or supercharger is being used on the engine this application usually requires a higher octane gas to run the engine smoothly but as for your appilcation there should be no reason you cannot use regular gasoline, the computer will adjust your ignition timing as need to maintain good engine performance through the knock sensor.
Repair Help & Product Troubleshooting for Pontiac Grand Prix
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