Clean Diesel Pros

• According to Asher Auto, Ultra-low sulfur diesel (ULSD)/clean diesel is more stable and contains 97% less sulfur than regular diesel and this reduces the production of sulfur dioxide that can irritate the lungs and the formation of acid rain and ground level ozone.
• Its refining process destroys compounds that lead to particulate matter (PM), reducing sulfur-based and PM pollutants.

Clean Diesel Cons

• Asher Auto states that the clean diesel refining process also destroys compounds that reduce gum formation. Hence, a stabilizer is needed to reduce gum deposits that clog fuel injectors and fuel filters.
• It is also a less effective lubricant that leads to increased wear on engine components such as fuel injectors and pumps.
• Clean diesel is more expensive to produce and the cost is passed on to customers.
• There may be health risks where superfine particles produced by ULSD and advanced emissions control systems can result in respiratory issues and impaired breathing.
• Since diesel vehicle emission control devices are extremely sensitive to sulfur, continued exposure can lead to permanent damage and expensive repairs.