Technical Resources: We’re Here to Help
The resources library below is in place to assist you in your preventive maintenance programs. These are selected based on the most common inquiries we receive and those that can bring the most value to you, our most important resource. These will be updated and expanded over time. If you need help, you can always call us at 800-834-6219 or email us at [email protected]
We're here to help!
Technical Resources by Application Categories
Heavy Duty Engine Oils
Delo Performance Application Guides
- On-Highway Application Guide
- Commercial Bus Application Guide
- Off Highway Application Guide
- Light Duty Diesel Application Guide
Diesel Fuel Information
Heavy Duty Engine Coolants
- Engine Coolant Concentration Adjustment Charts
- Navistar MAXXFORCE Recommendations
- Benefits of Extended Life Coolants