I haven't had mine long enough to really know a lot of driving tips for good mileage. I think it helps that I live somewhere very flat, since I'm getting 48mpg without really trying too hard. It helps that a lot of the traffic signals have countdown clocks showing how many seconds to a yellow light. I judge when to get off the gas using those. I've found that once I'm up to speed around 40mph on surface streets, I can still get it to run on electric only for a few blocks. On the freeway, anything over 70mph is going to bring down efficiency greatly. Also, if I'm nearing the end of my trip and I see the battery charged up, I'll drive through my neighborhood on EV mode, likewise for the parking lot at work. To be honest I'm not sure if that really matters.