my archoil experience
Based upon some reading here, I ordered the archoil powerstroke 2 package from evergreen a few weeks ago before a long trip. I changed the oil with my normal oil (T6) and then ran it about an hour doing errands, washing the camper etc., before fedex brought the 9100 the next morning.
Poured it in, and started it up. the temps were pretty balmy for this time of year, and frankly did not notice much difference. I think most people who have noticed the difference were dealing with colder temps. Got in the truck, did not shut it off before Memphis. It ran better. no other way to put it, it just ran better. I also used the fuel treatment and it idled better, ran better at speed, had less turbo lag than usual, and got slightly better mpg. started it up the next mornign to no drama, pulled it to Florida. again, it just ran better.
Frankly, my truck always runs better after several hundred miles on the highway. so I was curious to see how it ran after we got back.
Got about 3K miles on this oil change now, running it around town as well. The around town driving is what gets me. before, no matter the tmep, the truck had to run several minutes before you had much power. now it is ready to drive within a few seconds of start. it starts quicker, easier, every single time. it is a joy to drive in traffic, i have less turbo lag which feels like more power. not really, pretty much same power, just get to it much quicker.
I am a true believer now.