happy john
Member
Fill to the rim everytime filled up at 700kms put in 64ltrs to the rim again works out to 9.2 per 100 that 2010 d22 2.5
John
John
You'll actually find that economy - particularly in the city with the stop-start driving - will get worse. Larger tyres mean it's harder to turn the wheel over (longer lever from axle to outside of tyre) so more juice is needed to get the vehicle going. It'll also feel a little sluggish. I went from 255/70R16 to 265/70R16 (that's a small increase, really - 10mm of width and 7mm of axle height) and wore nearly a whole litre per hundred km of extra fuel consumption.
Your speedo inaccuracy is all in the needle. If you query the ECU, and compare it to a GPS, you'll find that the car actually knows the speed fairly accurately, it just has a stupid dicky needle.
Tony could this be because the speedo also reads more accurately with bigger tyres?Mine is 10% out at 100ks [90ks true]running standard 265 70r16 checked with Tomtom & Garmin 60csx.If it reads right with bigger tyres would that account for 10% less fuel econ?Hugh
Small point, if you are doing mostly country driving... what does your air filter look like at a service?? maybe consider a sock??
Mine's full of bugs. Pull it out now and again and give it a shake, it's an entomologist's playground. Have even used the cordless Dyson in the bottom of the main chamber.
It's only the needle that's more accurate. Because the ECU is quite accurate on standard tyres, the odometer is similarly accurate on standard tyres and when you put bigger shoes on, the speedo might LOOK more accurate, but the ECU and odometer will be less accurate.
In my spreadsheet I accounted for tyre size adjusting the odometer reading, so my fuel figures are fairly accurate (give or take bowser metering and my inability to fill the tank exactly each time).
Heavy duty flyscreen mesh in the snorkel head, cut to size and held in buy the snorkel mesh
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