How often to replace the spark plugs on a Chrysler PT Cruiser?

The recommended replacement interval for spark plugs in a Chrysler PT Cruiser is typically every 30,000 to 100,000 miles, depending on the engine and the type of spark plugs used.

However, consult your owner's manual. This is the most reliable source for the specific recommendation for your particular PT Cruiser's year and engine. The manual will provide the precise mileage or time interval for plug replacement. Ignoring this could lead to poor performance, reduced fuel economy, or even engine damage.