I installed this on
Citroen Berlingo

Review
I have tried the Liqui Moly Diesel Speed Tec. The part that shocked me was that I couldn't see the usual black fog at the back of the van anymore! I tried it at night and I can usually see it in the van behind mines headlights. I thought it might just only a one day thing, so I decided to go for another few runs the next day in the day time and as well as night time. To be surprised, it is still so effective! Moreover, I realised that it can use for a long duration as every time I add it to the fuel, it improves the properties of my car and waste less petrol while running the Liqui Moly Diesel Speed Tec. It is really awesome! What disappointed me was that it was quite tough to find such a good product.

What I like
Can use it for long duration and as well to improves the properties of the engine

What I do not like
It is hard to find as most shop did not sell it.

I installed this on
Fiat Ducato

Review
I've always been using fuel of Octane 98 grade, but once, I hit the track over the borders, and my friend offered some of his Liqui Moly Speed Tec Diesel. I noticed much smoother and prompt response from my engine, providing quick power delivery. From then on, I've used it even on normal local roads, and rides were much comfortable with smoother, quicker pickup power and throttling.

What I like
The ability to provide optimum performance even by using average grade fuel.

What I do not like
Most shops do not sell these. Thus finding it will take quite awhile.