Cited from http:\/\/glossary.en.eea.europa.eu\/terminology\/sitesearch?term=rolling%20resistance „The quotient of rolling resistance of all resistances amounts to 20 – 25 percent. That is: every fourth to fifth tankful is consumed only to overcome rolling resistance. Remarkable: Up to about 60 mph rolling resistance is larger than aerodynamic resistance of a vehicle!<\/p>\n
Properties and quality of a tire therefore have a great influence on petrol consumption and thus on petrol cost. Naturally rolling resistance can never be eliminated altogether \u2013 a reduction by 30 percent however can be achieved with low-rolling-resistance tires; this resembles a reduction in petrol consumption by about 5%. A good reason to ponder using such tires.<\/p>\n
How is rolling resistance created? If you ever tried to push a stroller on a sandy beach, you have experienced an extreme example of high rolling resistance. And how much energy is required to overcome it. In a car rolling resistance becomes noticeable like this: the tires of a vehicle are being deformed in each wheel rotation by the weight of the vehicle. The tire adheres to the road with its road tread surface, which dissipates energy.\u201d<\/p>\n
Rolling resistance is optimized by employing the right tire pressure. Too low a tire pressure will lead to increased rolling resistance and petrol consumption and tire tread wear also in low-rolling-resistance tires.<\/p>\n