Here's how to remember it:
* Start with cylinder #1. This is usually the cylinder closest to the front of the car on the passenger side.
* Follow the pattern: 1-6-5-4-3-2. It's not a simple sequential order, so it's best to memorize the actual pattern.
Important Note: It's always best to double-check the firing order in your specific vehicle's owner's manual or consult a reliable repair manual for your year and model.