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🛢️ Power up your fleet with the ultimate synthetic shield!
ULTRA 1PLUS SAE 15W-40 Full Synthetic Heavy-Duty Diesel Engine Oil delivers advanced API CK-4/SN certified protection, exceptional shear stability, and thermal resilience. Engineered for modern 2020+ trucks and Tier 4 diesel engines, it reduces oil consumption and protects emission systems, making it the go-to synthetic oil for heavy-duty fleets and mixed diesel/gasoline applications.





| ASIN | B0B5Y1XWYQ |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #95,066 in Automotive ( See Top 100 in Automotive ) #636 in Motor Oils |
| Brand Name | ULTRA 1PLUS |
| Compatible with Vehicle Type | Buses, Off-road / Industrial equipment, Truck, Vans |
| Container Type | Jug |
| Customer Reviews | 4.7 4.7 out of 5 stars (74) |
| Flash Point | 220 °C |
| Included Components | Motor Oil |
| Item Highlight | Delivers superior wear protection and thermal stability for heavy-duty diesel engines in extreme temperatures and heavy loads |
| Liquid Volume | 1 gallons |
| Manufacturer | Ultrachem LLC |
| Manufacturer Part Number | UFS1540CK4SNG |
| Manufacturer Warranty Description | 22 |
| Model Number | UL108 |
| Number of Packs | 1 |
| SAE J300 Viscosity Grade | 15W-40 |
| Size | 1 Gallon |
| UPC | 810050658966 |
| Unit Count | 128 Fluid Ounces |
| Viscosity Level | Medium to High |
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