My car starts, idles and runs fine. However, lately I’ve noticed a mild case of nailing. The valves were adjusted about 24,000 kilometers ago and I’m aware that another one is due soon (recommended every 24,000 kilometers according to the maintenance manual). But what I thought I’d do first is a Diesel Purge. Result: In an instant after consuming only half of a can, the engine idles a lot smoother, the nailing is gone and the engine sounds much quieter. Amazing!

My maintenance record indicated that on average I do a Diesel Purge every 8,000 kilometers (3 times per year) and it sure does help in keeping the engine healthy. Try it and you will love the result.

My $0.02