- Oct 6, 2006
- 12,155
- Boat Info
- 1996 450DA
- Engines
- 3116 Caterpillars
So far, marine diesels have been exempt from most of the restrictions the EPA has imposed on diesel engin used on highways. Given the life span of the typical diesel and the fact that the EPA cannot retroactively impose restrictions, it will be a long, long time before most of us ever have to even consider cat converters and urea tanks on our boats since everything made up to the point of the imposition of restrictions will be grandfathered as of their date of manufacture.