How to reduce black smoke from diesel engines.?
Black smoke emitted from a diesel engine is indicative of excessive fuel, or lack of air. This frequently occurs due to a dirty or blocked air cleaner, or the injector pump requiring recalibration. It has been known for unscrupulous firms to use an excess (cold start) fuel setting, in order to try to obtain a bit more power from an undersized engine! This causes black smoke, especially when going uphill. A faulty turbo charger can cause black smoke and serious loss of power, and poor spray pattern from the injectors is also a possibility, but easily checked. Don’t understand: “emission reduction liquid in the petrol”?