Well, Elton did the 3bond Diesel for my ride, the carbon was accumulated through the years and after the treatment, noticed a slightly more responsive ride, and after few hundreds km of travels, notice that the black smoke reduced.

However, apart from the 3bond, I too poured in the Lambda Tank Diesel, ain't sure which is the one contributing the less black smoke :-)

Elton been very friendly and explains what he's going to lay his hand on the ride, I was worried but guess he's very seasoned in automotive area and being a noob as I am, I lay my trust on him :-)

Highly recommended!!!