Yes it will differ from real speed
On most newer vehicles t is done with a scan tool.
itl mess up ur speedometer and most likely ur gas mileage wil change but for the better or worse idk
You recalibrate it because bigger tires mean different speeds... for example, lets say your car had 14 inch tires... and your speedometer is saying that you are going 50, if you add 20 inch tires which is 6 inches bigger, you might be going around 60-70. No need to get a speeding ticket. Bigger tires cover more road then smaller tires, for example for ever 1 turn from a 20 inch tire is like 1 and ahalf turns from a 14 inch... Hope Ive helped you understand why :)
Yes, they can be used? To keep it simple, have the people who install your tires match the height of your existing 18 in tires with the new 20" tires. Doing that keeps you from reprogramming the computer to match the new combo and your speedometer will be correct.
It has been done. You will need tires with no air in them, just rubber stretched across the rim, and forget about lowering springs. Do not forget, your speedometer will be off by a considerable amount once you do this.
Yes, Dodge comes oem with 17" and 20". I have owned both of these. If putting on bigger tires or lift with either of these make sure proper offset.
whats 20% off 17.00dollars
20
We have a '78 International that requires DOT inspection (more demanding than regular) the speedometer is 20 mph off and passes every year.
20% of 15 = 0.20 * 15 = 3
17 pounds.
The answer I think is 20