In my opinion, the results of greased Lightning have delivered tenfold. Personally, I have used these on both modern vehicles (Mini 2007 and Renault Clio 2005) and an older Vehicle (Land Rover Discovery Tdi 1995). The additive treatments work on both Diesel and Petrol Engines, any size and make. I have previously tried other treatments and the results were not as effective or consistent. The reason why I can say this is because on the vehicles which i have used this in digitalise the MPG on the dashboard due to the feature being added upon manufacture. Once, I used Greased Lightnings ...
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