With todays engines getting more and more complicated, there was an introduction in direct petrol injection systems, removing the common-rail system. Vehicles like the Mitsubishi Shogun GDI and Mini Cooper 1.6 use these direct injection systems. In doing so there is a common fault created as almost a knock-on effect, a carbon build up that sources from the recirculating exhaust gases and the crankcase ventilation system that occours because the fuel enters the system after the intake valves, allowing the carbon to build up on the areas the fuel doesnt contact. On a conventional engine, the fuel enters before the intake valves, in turn, washing the carbon into the combustion chamber and burnt off in the process, giving a much longer period of time before an issue arises.

Whilst the term GDI - Gasolene Direct Injection - is a Mitsubishi trademark, the technology is in fairly widespread use and has a number of other names, Toyota has D4 Direct Injection, Hyundai has DI (direct injection) and so on, and from what I understand, this "coking" of the intake is an issue common to all brands, although the different manufacturers are adopting different strategies to deal with it - including adding an extra injector upstream from the valves to provide fuel to wash the intake & valves clean - which of course, is not the type of solution available to us as users.

Here at Autotech, we understand the issues that are showing their faces and with the Terraclean Direct Injection Treatment, can eliminatge the effects of the build up we see more of daily, to ensure your vehicles stay in motion.