Ive been in that cold of weather and crap doesnt work to good....including me! Coldest ive been in was -25 to -30*F air temp plus we had 25mph winds so with wind chill it was fricken stupid! My lil Ranger had a manual trans that took nice runny ATF, well i fired it up to warm it and let the clutch out in neutral and it insta-killed the motor the atf was so thick! I had to rev it up to let the clutch out! My 15min drive home at 2:00AM after class.....not a flicker of heat, shocks froze solid whole way home, bout had to use 2 hands to shift! We got 2ft of snow that night and to think it was like 70*F five days before! Gotta love Wyoming, glad that was only for 9mo!