It's been a hugh improvement for me this year. I had tried the Mobile1 and friction modifier as well as Redline MTL prior and both were useless in cold weather.

99 CSVT Green/Tan # 84 of 2760 Built on Wednesday, September 30, 1998 15.376 @ 92.00 MPH Stock 75,000Km 96 Contour GL 2.5L V6 ATX 170,000Km