[vteco]

Could be, Piotrsko.

Sorry, missed the other question about speed difference...

Two radar speed signs agree that when I am reading 38 mph on my dash's speedometer, I'm actually going 35 (the posted speed limit). One of the signs is shortly after a curve in the road. The other is on a long straight slight grade.

Of course they both could be wrong -- they're on the same road, not far apart, and likely from the same manufacturer.

I guess once I get the truck back from the fuel tank replacement (today or possibly tomorrow) I can try checking the odometer accuracy on a measuerd length of highway, and also check speed against GPS in Torque app on the phone.