I don't think i wil use LRR. What is see is that it's good for 0.3 liter on 100 km(according the Michelin Energy Saver). And the smalest energy saver (165/60R14) cost about 100 euro each. A normal tyre 155/60R13 cost about 40 euro. So 240 euro's less. And i don't think that a 165/60R14 LLR has a better FE than a normal 155/60R13.
Lets say it saves 0.3 liter on 100km like Michelin says. Lifetime is 40.000 (also according Michelin) saving 120 liter. 240 euro diverence is 185 liter diesel. So i have to make at least 55.000 km before saving money.
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Originally Posted by arcosine
I wouldn't worry about bearing drag... its infinitesimal. The main concern would be pumping losses and engine/drive friction.
Roman, what RPM is the engine when at 100 kph?
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I don't know. My RPM meter is broken. Have to fix that first. But i think it's a bit high. The transference is a bit wrong. The gears are very short.