Subaru 2014 Forester

[josbeef]

Hi, new to Fuelly. Really like the site so far. I'll try to be disciplined and keep the fuel data for my Forester up to date.

Question: it's my first car equipped with a gas mileage display. Are these instruments reliable ? ( Subaru or not) My sister in law has a 2013 Outback and was told by the dealer that they weren't !

Thanks for the feedback.

[Draigflag]

If it's an instant reading, you'll see it jump between 3 and 99.9 MPG with a slight adjustment of the accelerator! However if there's a trip MPG reading (average since you reset it) these are more accurate, but tend to be 2 to 4 MPG higher than actual. The longer you don't reset it though, the more accurate it tends to be.

[theholycow]

The dealer is correct. Those readouts are not at all accurate. They can be a good reminder to drive efficiently, many can reliably tell you if you did better than your last tank, but they cannot be used to compare to other drivers/cars in a meaningful way.

[josbeef]

Thanks Draigflag & Holycow , i was planning to do just that, letting my tripB setting go without resetting it as long as possible.

[faztcobra]

I've done 3 fillups in my '14 Forester so far and the in-dash display has always been a little high. On my first tank, the display was reading 28.8mpg and actual was 28.4 or 28.5, I forget. The one I did the other day, the in-dash readout was 30.0mpg and actual was 29.5. So, they're in the ballpark, but no super accurate. On my 2012 Mustang GT, the in-dash display was actually about .75mpg lower than actual most of the time, I was was disappointed to find out Subie's read a little high. Either way, I'll be happy if I can get my combined mpg at 30 or better. So far, I'm about about 28.6 avg over 3 tanks.