I can't really tell who's winning the argument, but I have run my truck in many different climates as I travel alot those range from -10 to 110. It's always noisy when it's cold, at least I couldn't tell a difference. I ran motorcraft 15w-40 after purchasing my truck and changed it every 3k, after about a year I switched to T6 @ 5k no additive, I've been running it for two years and have replaced less injectors than I had to with the motorcraft. I personally "believe" the thinner oil is keeping my injectors happy. The best thing to do would be to spend the extra $2.00 per gal. and try it out for yourself then maybe decide if you want to add any kind of additive.
Replaced stock w/stock
Harley Davidson windshield
Replaced w/or added, upgraded, modded or converted.
RECON Big Rig Ice running board lights, interior LED light conversion.
RECON smoke LED tail lights, third brake light, mirror lights, fire & ice tailgate strip.
Garrett powermax turbo
Metal CAC tube, Turbo oil supply and drain conversion
Fuel/water separator drain plug
Goodyear Wrangler Duratrac 275/65R20
Drilled/slotted rotors w/ceramic pads
IPR Generation 2 EGR delete.
IPR High flow coolant filtration system.
Rear mounted under bumper off road lights for hooking up & setting up trailer.
Frame mounted air compressor w/ 2gal. Reserve.