Post your Gas Mileage : Calculated

[Deamos]

Haven't added to this in a while.

8/29/2025
2020 Mazda CX5 Grand Touring
9.074 Gallons / 283 miles: 31.2MPG
Costco/Kirkland 93

9/3/2025
2020 Mazda CX5 Grand Touring
9.502 Gallons / 252 Miles: 26.5MPG
Costco/Kirkland 93

The tracked average via Fuelly has increased to 24.7 lifetime.

The first four years of ownership, living in the city and doing a lot of short city driving, really took a toll on this. Since moving in the spring, I've been doing a lot more highway miles.

 

[odie]

'25 KIA Soul LX ( Mars Orange ) : 2.0 Ltr. ( M.P.I. ) w/ I.V.T. : Driving Mix : 60 (Hwy) / 40 (City) . T.P. ( Cold ) : 33.5 > 34 . Fill of summer blend (?) Top Tier 94 w/E10 . New Oil / Filter : P.U.P. ( S.P.,GF-6A ) 0w-20 w/ KIA / HYUNDAI 2630-35505 oil filter .

The overall calculated for 14 tanks is 37.09 . So , about 2 M.P.G. difference between Display (E.C.U.) and Calculated M.P.G. .

 

[marc1]

Lifetime averages:

2017 Tacoma 25.1 mpg Imperial (20.9 mpg US) - daily driver, mostly city life, occasional long holiday highway trips
1967 Impala 18.6 mpg Imperial (15.49 mpg US) - city / rural countryside cruiser, occasional vacation trips
1969 AMX 11.3 mpg Imperial (9.41 mpg US) - city "stop light to stop light" performance axle ratio muscle car, occasional car show highway trips

 

[Hermann]

Filled up the new BMW R12s Motorrad at BP with Amoco Ultimate 93 octane. Love this fuel. It smells wonderful. No nasty alcohol smell. Figures below

44.8 MPG​

Details​

• MPG: 44.8
• G/100mi: 2.23
• Miles: 153.6
• Gallons: 3.43
• Price: $3.50/Gallon
• Total: $11.99

 

[odie]

'25 KIA Soul LX ( Gravity Gray ) : Driving Mix : 60 (Hwy) / 40 (City) . Avg. Temp : 57 . T.P. (Cold) : 33.5 > 34 . Fill of summer blend Top Tier 91 w/E10 . Oil / Filter : P.U.P. ( S.P., GF-6A ) 0w-20 w/ HYUNFAIA / KIA ( O.E.M. ) 26300-35505 .

Display ( 38.3 ) 2.76 higher than the CALCULATED ( 35.54 ) for 24 fill ups .

 

[brillo54]

'24 Subaru Crosstrek 2.5 L
281 miles, 8.043 gallons, 34.97 mpg.

 

[ctechbob]

Record for me in the F150. Strictly back and forth to work, no highway at all.


27.6 MPG

 

[himemsys]

I had the best tank in a long time on my 2003 Civic EX. It is almost exclusively a short-tripped car now and averages a consistent 30 mpg in that mode. However, this past weekend it took two trips to the big city for a total of 200 highway miles and averaged 38.2 mpg. That's about what it averaged on highway trips back in the day when it was used that way. So I'm glad it's still "got it."

 

[fdcg27]

HAH, 387 miles on 7.3 gallons, so 53 mpg.
About 40% highway, minimal AC use.

 

[50yr Street Mech]

Calculated ? 3 - 4 bangers / 2 of which are FWD 18mpg city / 25 highway AWD 16 city / 18 highway

 

[Hermann]

Fill up at Murphy's. Almost all hiway

38.7 MPG​

Details​

• MPG: 38.7
• G/100mi: 2.58
• Miles: 541.1
• Gallons: 13.98
• Price: $2.75/Gallon
• Total: $38.44