bazza1966
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Posts posted by bazza1966
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I have recently upgraded to 17" rims from the original 16" ones on my IS220d. On a recent trip to Leeds I noticed, where the distance had always been 177 miles door to door before, it was now 170 miles. I do realise this is to do with the slightly bigger turning circumference, approx 6cm, in the rear 245/45 R17 wheel/tyres in comparison to the original (ugly) 205/55 R16s.
My question is which is the more accurate?
I am thinking possibly the 17" rim mileage, as I also noticed my speedometer speed more closely matched the speed on my TomTom compared to before, where it always seemed that tad faster.
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Has anyone got any idea of the latest edition Great Britain sat nav cd for a '00 registered is200? I currently have the '03-04 (Apr 2003) version.
cheers
Mileage Differance
in Lexus IS 250 / Lexus IS 250C Club / Lexus IS 220D & IS 200D Club
Posted
So is the TomTom speed reading the most accurate indication of my actual speed? As it's measured by the GP Satellites.