Canadian Driver published a July 2007 Michelin LTX A/T review. The testing, done in early summer in Alabama, did not mention snow capability. Michelin rates it as an all-season tire. The accompanying photo shows a fairly aggressive tread pattern with generous siping. It should manage snow well and drain slush and water away from the tread. The item says it's designed for durability and heavy loads. That suggests the rubber compound is hockey puck hard. Ice traction is not likely its strong suit.
For snow traction you need about 6/32", roughly half tread depth, so the grooves between the tread blocks can better grip snow and direct water away from the tire surface. A tire tread depth gauge costs only $5 from Princess Auto.
The sun's ultraviolet rays age road tires. Michelin says tires older than 10 years should be taken out of service regardless the remaining tread. After six years watch for sidewall splitting, checking and cracks between the tread blocks. Discard the tire if any are evident or risk an explosive blowout. The last four digits of the Tire Identification Number identify the week and year of manufacture. The tire pictured in the attachment, DOT U2LL LMLR5107, was manufactured during the 51st week of 2007.
Pickup trucks have a heavy engine up front and an empty cargo box in back. They can be challenging to manage on slippery surfaces or if driven too fast into a corner. Loading them up helps equalize front-rear balance. Several products will add weight to an empty cargo bed and aid winter traction including the BedRock Traction Assist System and the ShurTrax Traction Control System. I prefer the BedRock.
http://www.canadiandriver.com/2007/07/19/michelin-ltx-at2-light-truck-tire.htmhttp://www.bedrock-traction.com/http://www.shurtrax.com/
