Originally Posted By: rpn453
Oops; that just links to one of the test result sheets.
The Correct Link
I had the original document saved on my computer. While figuring out this link, I noticed they had corrected the name from Road Tone to Roadstone.
I recommend going studded. With studs, you'll enjoy the slippery days. But they may be a bit noisier. Some tires are a bit noisy with studs, while some aren't even noticeable.
There is some very interesting detailed information in the test tables.
The 231 may not be such a good value if you include the poor rolling efficiency (2.8% worse than Nokian)and poor ice performance verses the best tires.
For 50,000 km estimated tire life and 11 litre per 100 km (20 mpg).
At my current 1.30 $/litre fuel cost
2.8% improved fuel efficiency = $200
Up to $200 in fuel savings over the life of the tires narrows the cost benefit of going with a cheaper tire. Especially once you consider a higher possibility of getting into a collision on an icy road.
I think I might try a studded Nokian next time around.