Re: Winter Tires?
Fuel economy in winter? I would just leave them on unless you plan going out driving right after a heavy snowfall. Even so, any vehicle would benefit from a winter tire as the rubber is more pliable in colder temperatures whereas A/S tires are still pliable, but all I do with my vehicles is lower the air pressure a bit in winter, to around 30psi providing max pressure is 35-40psi. I generally run 34-36psi in my passenger ('P' designated) tires in the summer months for better handling, mileage and wear. Lowering the air pressure even by a few pounds can increase grip in any tire, even winter tires although there is no real need for it. I wouldn't be concerned with fuel economy in the winter unless you just hop in, start up the vehicle and drive without any warm up time. Where I travel in winter hotels don't ask you if you want a smoking or non-smoking room, they ask you if you want a cord to plug in your vehicles block heater so when you leave in the morning at -52C, you'll actually be able to leave!
'11 Ram Quad Cab 4x4 SXT 5.7L HEMI (stock); 48,500m
'06 Pontiac G6 GT 3.5L 220hp; 64,000m
'12 Chrysler 200 Limited 3.6L 283hp; 28,000m
'99 Taurus 3.0L 2V Vulcan 145hp; 154,300m - Traded
Amsoil in all vehicles!