Most of the lists I have seen are a few years out of date now.
From Nokian's website this year.
Our tire with the least rolling resistance is the Hakkapeliitta R, a true winter tire that out rolls many competitors' all season "fuel efficient" tires.
...
Ultra-Low Rolling Resistance
The new Hakkapeliitta R has the lowest rolling resistance of any tire in Nokian Tyres product line.
...
That is really suprising to me, because I expected a summer tire with smooth tread to be the best.
But this is also interesting.
Quote:
I replaced my old tires with new Low Rolling Resistance tires and my mileage got worse. What happened?
Worn out tires already have low rolling resistance. They often have less overall weight and tread grip because the tread is worn down. Although unusual, it is possible that the addition new of tires could lower gas mileage, however you can be assured that you are now also driving with safer tires that have adequate grip.
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Right now, I have Toyo 800 Ultra with less than 1/8" of tread, and they coast great. They are already a good LRR when new, and when nearly bald, they are super.
So I guess the best LRR tire is a worn LRR tire. And you can save a lot of money buying them. Just don't use them in snow or heavy rain.