My 1999 F350 7.3l was running alright, but having a little trouble starting in cold weather. This was recommended to me, I researched it, tried it and within 30 miles could tell it was running better. It's been easier to start after using. I've been using it for 3-4 years now.
I'm running this in both of my vehicles. Both the work and my personal vehicle,
The work is a 6 liter, Ford with 352000 miles on it. It is not buller-proofed and runs incredibly well.
Works as advertised and worth the investment!!!! My wife's 7.3L truck stopped burning oil after one oil change. We change every 5k using Valvoline Blue 15w40 conventional. Both trucks pushing close to 400k no issues!!!!
My truck runs a lot smooth after putting it in I would tell everyone to run it
Truck seems to run smother and quieter. Starts great and may even have a bit more power. Might get lucky and see better fuel mileage.