Highway MPG
11-14-2015, 10:33 AM
#31
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All these great numbers are coming from C2's. Mine is a Targa4S which I strongly believe affects the MPG.
BTW I averaged 26 (indicated) from Dallas to Eureka Springs.
BTW I averaged 26 (indicated) from Dallas to Eureka Springs.
11-14-2015, 10:36 AM
#32
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11-14-2015, 11:28 AM
#33
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I noticed the OP used Fuelly calculations and it appears most everyone else used the car's computer. Aren't the car system notoriously "optimistic"? Has anyone checked "actual MPG" (Fuelly, log book/calculator, etc.) against the car computer? 10% high is a number that comes to mind for the car vs calculated.
Anybody?
Anybody?
In Dec 2014 (a few months after I got my C2 Cab) I was curious how the display compared to actual. So I started recording all my fillups. It became a habit that I've continued and I have a spreadsheet that I record the gas data in, along with any other maintenance done on it.
I have put about 18k on my 911 in the past year. I have a 31 mile commute which is nearly all highway, and I regularly see upper 20's to even an occasional 30 or 31 on the readout while driving. However my calculated (ie, real) mileage is consistently in the 23-26 range. Over the last year I have averaged 24.54mpg. My best actual ever was 26.9mpg on a trip to Vegas.
So yeah, the computer readout is most definitely high. But of course, ymmv...
11-14-2015, 03:11 PM
#36
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11-21-2015, 06:59 PM
#39
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