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⚙️ Keep your gears running smoother, longer — because your ride deserves the best.
SAE 75W-90 Synthetic Gear Oil GL-4 is a premium, API GL-4 certified lubricant designed for manual transmissions, transaxles, and limited-slip differentials. It offers all-season viscosity stability, superior thermal and oxidation resistance up to 205°C, and advanced anti-scuff additives to extend gear and bearing life. Compatible with motorcycles, passenger cars, and light trucks, this 1-quart synthetic oil ensures reliable, high-performance drivetrain protection and reduced maintenance costs.




| ASIN | B088ZYPJQX |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #12,918 in Automotive ( See Top 100 in Automotive ) #27 in Gear Oils |
| Brand Name | ULTRA 1PLUS |
| Compatible with Vehicle Type | Motorcycle |
| Container Type | Bottle |
| Customer Reviews | 4.8 4.8 out of 5 stars (607) |
| Flash Point | 205 Degrees Celsius |
| Item Weight | 1.9 Pounds |
| Liquid Volume | 1 Quarts |
| Manufacturer | Ultrachem LLC |
| Manufacturer Part Number | UFS7590GL4L |
| Model Number | UFS7590GL4L |
| SAE J300 Viscosity Grade | 75W-90 |
| Size | 1 Quart |
| UPC | 810050654326 |
| Unit Count | 32 Fluid Ounces |
| Viscosity Level | High |
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