Skip to content

Solutions
- Personal
  - Consumer
- Racing
- Commercial
- Service Centers
- Industrial
Products
Product Selector
Retail & Service Finder
Loyal to Royal
About Us

Commercial Products

Duralec® Super Diesel Motor Oil
MAX-TANE™
DURALEC® ULTRA DIESEL MOTOR OIL
Ultra Performance Grease™

Footer

Address

1060 N Capitol Ave
Suite 6-401
Indianapolis, IN 46204-1044

Phone

281-354-8600
888-382-6300

About
FAQ
SDS
Cal-Connect
Contact
Careers

Human Rights
Privacy Policy
Royal Purple Consumer Chemical Additive Limited Warranty
Royal Purple Consumer Lubricant Limited Warranty

© 2025 Calumet, Inc., All Rights Reserved.
All trademarks, including the color purple, are owned or licensed by Calumet Branded Products, LLC (“Calumet”)—a wholly owned subsidiary of Calumet, Inc. or an affiliate, unless otherwise specified. These trademarks may be registered in the U.S. and elsewhere.
All third-party trademarks referenced by Royal Purple® remain the property of their respective owners.

Solutions
- Personal
  - Consumer
- Racing
- Commercial
- Service Centers
- Industrial
Products
Product Selector
Retail & Service Finder
Loyal to Royal
About Us

Search for:

Search for: