- Marine diesel contains additives to prevent microbial growth, corrosion, and water separation, which are common issues in marine environments.
- Highway vehicle diesel does not contain these additives, as they are not necessary for road use.
Cetane number:
- Marine diesel typically has a higher cetane number than highway vehicle diesel, which means it has better ignition quality and can withstand higher compression ratios.
- Highway vehicle diesel has a lower cetane number, which is sufficient for the lower compression ratios found in most highway vehicles.
Lubricity:
- Marine diesel typically has a higher lubricity than highway vehicle diesel, which helps to reduce wear and tear on fuel system components.
- Highway vehicle diesel has a lower lubricity, which is sufficient for the lubricated fuel systems found in most highway vehicles.
Sulfur content:
- Marine diesel typically has a higher sulfur content than highway vehicle diesel, which can lead to increased emissions.
- Highway vehicle diesel has a lower sulfur content, which is required to meet emissions regulations for on-road vehicles.
