rbonnett
07-27-2009, 05:58 PM
Is it possible for the odometer to be way out of calibration when the speedo isn't? I was pleased but suspicious about the mileage I seemed to be getting, so I checked it last time I was on the freeway.
I ran one of those measured miles, plus checked against several sets of mile posts. Very consistent - both the trip and regular odometers read 1.5 miles for every mile the DOT says I've gone. I'm not too concerned about it, except being bummed that I'm not getting 23 MPG after all :(
I'm far from the fastest thing on the road - although on surface roads I do keep up with traffic. On the freeway, I run at 90 or so Km/H at 2500 - 3000 RPM, which is my balance between the noise, stress on the truck and not getting flattened from behind.
Judging form other traffic, I just don't believe I'm actually doing 60 Km/H. Everyone overtakes me, but not like I'm standing still. And I would think a cop would have pulled me for going too slow by now anyway.
I am worried the speedo might be starting to go - if so I want to try to get it repaired before its completely shot.
I ran one of those measured miles, plus checked against several sets of mile posts. Very consistent - both the trip and regular odometers read 1.5 miles for every mile the DOT says I've gone. I'm not too concerned about it, except being bummed that I'm not getting 23 MPG after all :(
I'm far from the fastest thing on the road - although on surface roads I do keep up with traffic. On the freeway, I run at 90 or so Km/H at 2500 - 3000 RPM, which is my balance between the noise, stress on the truck and not getting flattened from behind.
Judging form other traffic, I just don't believe I'm actually doing 60 Km/H. Everyone overtakes me, but not like I'm standing still. And I would think a cop would have pulled me for going too slow by now anyway.
I am worried the speedo might be starting to go - if so I want to try to get it repaired before its completely shot.