Clean Snowmobile Facts
- CONCERNS
- National Parks
- Air Quality
- Water Quality
- Personal Exposure
- Other Concerns
- SOLUTIONS
- Engine Technologies
- Two-Stroke Engine Principles
- Two-Stroke Engine
Modifications - Four-Stroke Engines
- Electric Snowmobiles
- Fuels & Lubricants
- Oxygenated Fuels
- Biodegradable Lubes
- Low PM Lubes
- Clean Snowmobile Challenge
- What You Can Do
- REGULATIONS
- MONTANA ISSUES
SAE Permission Statement
Several papers are published on this website with permission from the Society of Automotive Engineers, Inc. As a user of this website, you are permitted to view these papers on-line, download the pdf files, and to print copies at no cost for your use only. Downloaded pdf files and printouts of SAE papers contained on this website may not be copied or distributed to others, or for the use of others.

