Just went on a 100 mile trip to London and I decided to check my mpg...
I had already travelled some 400 miles around my town since the last tank-fill.
Total miles travelled 512.
Litres used:49.9
Av economy is (512/49.9) x 4.54 = 46.67mpg IMP (38.9 US)
This is how I worked out my interstate driving economy 'X'
Pure town driving I usually average 43mpg IMP
Town driving..... 404 miles
Distance driving 108 miles
[(404 x 43) + (108 x X)]/512 = 46.67
17372 + 108X = 23895
X =(23895-17372)/108
X=60.39mpg
:mrgreen: This is comparable with my last long trip where I averaged 60.24mpg (50mpg US) :mrgreen:
It's good to see my car still reasonably economic even though I feel my compression may be weak, and I'm using some oil maybe a quart every 500miles although some is oozing out from behind a pulley: [for at least 2 years!]
:evil: I suspect the intermediate seal :evil:
Can anyone shoot my math down? :?:
Mathematical-Miser
Topic: Quantum Mileage (Read 2265 times)
