Castrol Syngear is a premium, synthetic, heavy duty, multi-grade gear lubricant that meets API GL-5 service. Castrol Syngear provides excellent cold weather performance, outstanding stability under higher than normal operating temperatures, and substantial load carrying ability for cooler operation and longer equipment life. Castrol Syngear is ideal for severe service environments and customers who want to extend service intervals.
Features and Benefits
- Castrol Syngear contains 100% synthetic base stocks for outstanding oxidation control and thermal stability for improved fuel economy and longer equipment life.
- Premium additive package protects inhibits rust, corrosion, and wear to protect against premature bearing failure and gear tooth wear.
- Excellent shear stability protects against viscosity loss to safely extend service intervals.
- Accepted and approved by the Eaton Corporation as alternatives to their Eaton Roadranger gear oils.
- Acceptable for use in conjunction with the Eaton Roadranger Extended Warranties
Warranty and Protection Requirements
- Exceeds all manufacturers’ warranty requirements for applications requiring a GL-5 full synthetic 75W-90 or 80W-140 Eaton Roadranger approved gear oil/li>
Industry Specifications and OEM Approvals
- API GL-5
- API MT-1
- MIL PRF 2105E
- SAE J2360
- DANA SHAES 256 Rev C
- DANA SHAES 429 Rev A
- Mack GO-J Plus
- International TMS 6816
Typical Properties*
* Due to continual product research and development, the information contained herein is based on products purchased in the U.S. and subject to change without notification. Typical properties may vary slightly.
Part Numbers and UPCs
Health and Safety
Based on available information, this product is not expected to produce adverse effects on health when used for the applications referred to above and the recommendations provided in the Material Safety Data Sheet (MSDS) are followed. MSDSs are available upon request through your sales contact office, or via the Internet at www.castrol.com/us. This product should not be used for purposes other than the applications referred to above. If disposing of used product, take care to protect the environment, return used oil to collection center.

