Offroad-Express

wjw wrote:

Slideways wrote:Some of you guys are getting pretty decent k's per Litre (especially the dude with the 1UZ!?) but Im just wondering, wouldn't tyre diameter and aftermarket diff ratios put the odometer reading out by miles?

Legally the speedo is supposed to be accurate, which would mean the odo is accurate too. So *if* the vehicle is certed correctly then the odo will be accurate.

Pretty sure it has to be accurate to within 5% or somewhere around there. But yeah you're right, most should be accurate by law but was just wondering if some have forgotten to calculate the ratio difference. As I'd love to have a Lexus 1uz in my cruiser and have good economy too!

but if they've got bigger tyres, doesnt that mean the speedo reads slow, thus not showing as many ks as its supposed to?

turoa wrote:but if they've got bigger tyres, doesnt that mean the speedo reads slow, thus not showing as many ks as its supposed to?

Yeah if bigger tyres are the only change then it shoudl read less k's, but then people often change diff ratios too.