12. Use quality gasoline
Technically, all gasoline is the same, but the detergent blends each company uses are vastly different. Over the long run, you’re much more likely to develop issues with injectors or sensors if you stick to that cheapo grocery store gas station.
13. Monitor your car’s actual fuel consumption
Most modern cars have a display setting in the instrument panel that will show you your actual fuel economy in real time. It’ll give goofy numbers like 1.2 mpg when you take off from a light, or 90 when you’re coasting down a hill. Those numbers aren’t really goofy: that’s actually what you’re getting at that very moment. Pay attention to those and you’ll see how much of a lead foot you really have.