My best MPG so far...

[Woody_Woodchuck]

I concur, to get anywhere near 50 mpg driving over 60 mph means that there are additional circumstances like tailwind or down hill slope. I’m not shooting down the poster, just stating what I have learned by experience. If I have a 5 mph headwind, going 55 mph I lose 3 to 4 mpg for that section (15 highway miles) of my commute. If there is a tailwind I can gain that 3 or 4 mpg!

Also, to folks who are trying to get good mileage and are falling short even though they drive 55 mph or under… accelerate slooooower. The Yaris, at least my 5-speed, will eat up the gas if you accelerate with a heavy foot. Heck, anything less than feather foot will drop the mileage big time. Go slow and steady, shifting just before you hit the power point of the next gear. It is going to take you longer than you might like to get up to speed but works. Same with accelerating on the open road, use a light foot and slooooowly get to your speed. Of course with other traffic you have to trade fuel efficiency for not pissing other folks off. If other vehicles are far enough behind me I’ll take it slow, if there is traffic I’ll accelerate faster but not quite as fast as most others.