I have been using Archoil products in my truck for six years and am pleased with the results.

The truck runs well with zero fuel issues and no water in the fuel or gelling.

I add the recommended amount of AR6500 “Diesel Treatment” with each fill-up in the summer months and switch to the AR6300 “Winter Diesel Treatment” during the winter months.

I also add a 12oz bottle of Archoil AR6400 “Fuel System Cleaner” every 3,000 miles.