In my humble opinion, diesel installation is much simpler! Even if you have a turbo - we've had feedback of great success that showed us how simple it is to deal with turbo diesels in both cars and trucks. Lately I installed a
system in my own VW TDI (Turbo-Diesel Injection) with great success: I feel much more power, getting higher mileage readings - and the installation was indeed easier.
Below you will see
success stories with diesels - they both did a very simple installation as shown above. The only difference was that the Italian guy used one device (on a small 1.9 liter diesel called Bora), and the American guy used six devices on his large 12.7 liter Detroit diesel engine. Note that these user reports are authentic stories from Water4Gas experimenters, however we have not verified them, and we CANNOT guarantee in any way, shape or form the accuracy or repeatability of these results - even if your diesel vehicle is one of the exact same models reported below.
77% better mileage - Volkswagen Bora 1.9 Liter TDI (Turbo Diesel) 
26% better mileage - BIG RIG DIESEL TRUCK 