Forum Discussion
31 Replies
- pianotunaNomad IIIHi Ozlander,
And your response is so helpful?Ozlander wrote:
If you know all these answers, why don't you know the answer to your original question? - pianotunaNomad IIIHi Pauljdav,
How do you calibrate the scangauge? I have a gps and would find that cheaper than paying Ford $60.00 - PauljdavExplorerThe previous owner of my truck put these same size tires on mine. I used a GPS to calibrate my scangauge and I use it as my speedometer. When it is time for new tires I will go back to the original size since I do not need the extra capacity.
Paul - SteveAEExplorerThe ScanGauge has a calibration for velocity. Recalibrate when you change tire sizes and the MPG reading will be accurate. I almost posted this earlier, but waited until I could confirm with Linear Logic as I know you guys are sharp.....
Steve - ScottGNomadSpeedo's often read higher than your really going. If you have a GPS unit I would use it to verify your speedometer is actually off before getting it adjusted.
- HiTechExplorerTaller effective gearing may actually improve MPG.
If you talk to a dealer or tuning shop, they can change the value programmed in to,the ECU as Mandalay mentioned so things read correctly, including aftermarket OBD II external devices.
Jim - OzlanderExplorer
pianotuna wrote:
Hi choochoo,
I was uncomfortable with the load rating on the 225 tires. I've gained 300 lbs per tire.
I was tired of the tail end dragging on the least little driveway--even though I had a roller installed to protect the hitch.
The wider tires have lower rolling resistance so mileage may improve slightly
The greater diameter will change the effective rear end ratio and again should slightly improve mileage.
Most of my driving is on the prairies and it is flat land.
If you know all these answers, why don't you know the answer to your original question? - pianotunaNomad IIIHi choochoo,
I was uncomfortable with the load rating on the 225 tires. I've gained 300 lbs per tire.
I was tired of the tail end dragging on the least little driveway--even though I had a roller installed to protect the hitch.
The wider tires have lower rolling resistance so mileage may improve slightly
The greater diameter will change the effective rear end ratio and again should slightly improve mileage.
Most of my driving is on the prairies and it is flat land. - ChooChooMan74Explorer
- Mandalay_ParrExplorerYour speedometer will also be off. Have dealer change the computer parameter.
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