[masraum]

Originally Posted by Cajundaddy

Your Boxster, like my 2009 Cayman probably gets close to 30mpg on the highway if you keep a light right foot. That last bit is the rub so I rarely see 30mpg.

To get 30 mpg, I'd probably have to do all of the hypermiler tricks. My commute is 84 miles of interstate. I generally have my cruise set at 83. Last year, I very consistently got 21.5mpg. This year, I very consistently got 22.5mpg. No idea why, and I noticed the same in my wife's car, about 1mpg more than last year, so it's not just me or the car. I do pass people, and that often means that I run up to 100-ish. I occasionally hit 110-115. So yeah, I'm sure I could get more, but I think it would require a lot to get up to 30mpg, and I don't think I could pull that off. I don't have that kind of will power.

All of the screenshots below are from the Excellence website.
https://www.excellence-mag.com/resources/specs/192

2009 Cayman/Boxster


2008 Boxster or Cayman


2008 Cayman or Boxster S