I actually have 2 sets of these, one is on my 07 Jeep Grand Cherokee Limited 5.7 Hemi/Quadradrive II this set has about 8,000 miles on then over 4 winters. The other is on my wife's 98 Subaru Outback, they were just installed this fall and have about 1500 miles on them. Both are studded. I have to say I have used Nokian Hakka studded snows in the past and I switched to the General Arctics because the Nokians, while excellent, were getting very expensive and not easy to find. The Generals are the equal of the Nokians are a much lower cost. We drove both vehicles home in the recent north east blizzard of Feb 8-9th and they gave excellent traction. Will definitely buy again, the studs do add noise but they really help on ice.