While this is great progress for new engines, owners, operators, drivers and mechanics each have an important role in assuring that engines currently in use operate at the lowest emission levels possible. They must focus on the problem of smoke emissions in older trucks. Even though new engines have virtually no visible emissions during normal operations, smoke from older truck engines is a significant and growing concern. Most truck owners and operators recognize that a smoking truck is an inefficient and poorly maintained truck, since smoke is really unburned fuel. Black smoke emissions truly do not pay.
Smoke is usually the result of incomplete combustion or certain engine operating conditions.
Smoke can also be the direct result of poor fuel quality or improper truck operation. Smoke comes in several different forms, including dark black, blue, and white. Proper maintenance at manufacturer-recommended intervals should easily detect, repair, and prevent these problems, while assuring that you truck is in the best operating condition. Clean Excessive smoke emissions can also be caused by poor driving technique. Common misconceptions about smoke and power are often the cause of tampering with engine emission controls.