forteAdvanced Formula Diesel Treatment Cleaner Car Fuel 400ml with Free Car Air Freshner, Lowers Emissions, Reduces black smoke emissions, Maintians EGR and Turbo

I believe it helped but only time will tell

I have run diesel cars for over 25 years and for a lot of that time I have used this Forte additive. The foreman of a local garage recommended this at each annual service and assured me that improved overall performance and efficiency. It’s impossible to quantify the effectiveness, but my engine runs smoothly and cleanly and so I think there will be a long term benefit.

Use it regularly and keeps the engine running fine cuts down the smoke