I’ve been using it for years. Always dose what it says it will do. I wouldn’t use anything else.
my husband has used this treatment for about 4 years, it has kept our vehicles operating in top shape, even the older vehicles
both fuel and friction modifier have made noticeable in my vehicle
So far, so good. Too early to tell how significant yet. Drive 5 totally different vehicles - modern to classics, trucks to muscle cars to 4 cylinders. All have a different feel so just need time changing 1 variable to determine effectiveness.
Have used AR6200 in my H-D motorcycles for years. I have tried other products which didn't work as well. My older manual compression releases would stick open and I had to clean them (ultrasonic) every 4-6 weeks to prevent the sticking. After I started using AR6200 I only clean them once or twice a year.