How does inefficient combustion cause so many major engine problems?

Inefficient combustion is usually caused by a number of factors, such as excessive idling, short run time, light work, and city type driving. All these operating conditions do not allow efficient combustion of the fuel (diesel or gasoline), which contribute to hard-carbon deposit formation, often resulting in major engine problems, including premature wear, breakdown and ultimately, overhaul. Here’s a solution…