Procurement brief
Commercial fit and product signals
Ultra1Plus SAE 50 Heavy Duty Diesel Motor Oil API CH-4/SG is listed for Diesel engines, Fleet maintenance, and Heavy equipment service. The verified catalog signals on this page include SAE 50 and API CH-4/SG. MAXILUB uses those details as the starting point for product-fit, quantity and package discussions; they do not replace the equipment manufacturer's current requirement.
Match diesel oil to engine generation and duty cycle.
Commercial diesel selection starts with the engine maker's viscosity and API requirement, then accounts for idle time, load, emissions equipment and planned drain intervals. Provide the engine population and maintenance schedule when requesting a fleet supply recommendation.
API category and OEM requirement
This listing identifies SAE 50 and API CH-4/SG; confirm each requirement against the vehicle or equipment manual.
Operating load, idle time and climate
The indexed applications include Diesel engines, Fleet maintenance, and Heavy equipment service; provide the exact asset or service use with the request.
Fleet consumption and replenishment frequency
Package sizes, order quantity and delivery timing are confirmed with the commercial quote.
Common applications
Commercial sectors
Where this product enters a South Florida supply plan.
Review the purchasing priorities for the operations that commonly evaluate this product, then include the application, quantity and delivery ZIP with your request.
Commercial Fleets
Lubrication planning for vehicles that need to stay in service.
View industry guidanceHeavy-Duty Trucking
Heavy-duty lubricant supply for maintenance shops, terminals and operators.
View industry guidanceConstruction & Heavy Equipment
Fluids for equipment maintenance, hydraulic systems and field service needs.
View industry guidanceAgriculture
Lubricants and fluids for farm equipment, service crews and seasonal operations.
View industry guidanceVerified product details
| Viscosity grade | SAE 50 |
|---|---|
| API / industry specifications | API CH-4/SG |
| Package size | Quote for available package sizes |
| Country of origin | Made in USA |
Use only where the vehicle or equipment manufacturer specifies this viscosity and performance level.






