I've tried everything from the Mobil 1 "cocktail" to Ford Honey (with and without FM) to ATF+3 to Synchromax, and the Synchromax is the hands down winner as far as I'm concerned. Definite improvement when shifting in the cold, and on par with the Honey in the warm. It doesn't hurt that it's less than half the price of Honey, and it's easy to sqirt in the tranny via the squeeze bottle, too!

1999 Red / Tan SVT #1969 of 2760 Built 4/21/99 K&N, DMD, FMS Wires, ES Insert / Bushings, PF End Links 17" FSVT 5-Spokes Factory Spoiler 35% Tint All Around