Tirerack offering LRR as an option while searching for tires
 

I was looking through Tirerack.com and noticed an option on the left side for narrowing my search results:

Low Rolling Resistant

• Include LRR Tires
• Do Not Include LRR Tires
• Show ONLY LRR Tires

Edit: https://www.tirerack.com/tires/tires....omCompare1=yes Kumho eco Solus HM KR22 are LRR, have 6 Years / 100,000 Miles treadwear warranty and 2 Years / 24 Hour Roadside. Nice, especially at a reasonable $71/each!

they've had that option actually for quite a while now.. Just tried that option again and it seems to actually be more useful than it was in the past.

Do LRR tires make a big difference?

they can make some difference, but the yield in FE may not be enough to offset the price. i say just research for your application, and find the best(or a good) rated tire.

i would even consider where the tires are manufactured. buy domestic if you desire.

I would not pay much more for LRR tires, nor buy them at the same price with a shorter treadwear warranty. If choosing tires for cost-efficiency, long treadwear is worth more than LRR. However, if they're competitive in treadwear rating and price I'd definitely choose LRR.

What would be more useful is to show the coefficient of RR. I believe each manufacturer knows this number for their tires. Since it is a sliding scale and not binary, RR coeff would help guide tire selection.