[TimV]

My learnings of installing tires with lower rolling resistance. At first, you wont see a difference. It is when there is driven some distance with it that they get to the point where they have low rolling recistance. As long as there are those small "hairs" on. It wont have lower fuel consumption. Mine went lower after 10 000km (6200miles). But then again. Those tires should last 80 000 to 100 000km!