Originally Posted by
dedwards0323
Just didn't drive the XFire much that year - only 410 MPG miles. And all of it around town on short trips or to local car shows. Calculation just turned out that way. If you look at the PDF I attached, you'll see I keep track of mileage two ways - DRIVEN & MPG. The DRIVEN mileage is the difference between ODO readings taken on the 1st of every year. The MPG mileage is the difference from last fill-up for each year. Never the same - most times not even close. MPG is calculated using MPG miles; OPER COST is calculated using DRIVEN limes.
And I keep track of MPG during extended road trips (i.e., Eureka Springs in 2015, ToD Weekend GTGs, etc.). During Fall/2017 ToD Weekend, XFire got 25.8 M mpg. Not bad for up & back + semi-spirited mountain driving. Out to Eureka Springs in 2015, XFire averaged 26.1 mpg out & back + Ozark Mountain cruises. And the car consistently has gotten the mileage over the 9+ years I've owned it.
Do you figure this all out with the slide rule as shown in your avatar?
Calculations have come a long way since my apprenticeship days, trig tables, logs, slide rule, the Friden that looked and acted like a maniacal typewriter, the **** with the dodgy filament bulbs and punched cards and then the pocket calculators were developed, my favourite being the HP line and the HP 42C in particular. Now we rarely use them if at all in engineering design, it all being done for us and we just measure with the cursor and the dimension just pops up. I spent countless hours on a Friden doing sets of calculations the pocket calculator would do in minutes and the PC basically instantaneously.
The good old days? I do not miss them at all.
