Genuine Rehlko Oils: Engineered for Maximum Protection and Performance
Stay moving with Rehlko’s highly engineered diesel and gaseous generator oils—built to deliver unmatched reliability, efficiency, and cost savings for your power systems.
Why Choose Rehlko Oils?
When uptime is non-negotiable, every component matters, including the oil that keeps your generator running. Rehlko oils are designed for mission-critical performance, protecting your investment and reducing total cost of ownership. Whether you need an advanced synthetic formulation or a proven conventional oil, Rehlko delivers superior protection and efficiency in any condition.
Stay moving with Rehlko Diesel Oils
Our XTREME Conditions 10W-40 diesel engine oil is engineered for extreme environments—providing superior wear protection, extended drain intervals, and optimized efficiency to keep your generators running longer and stronger.
Rehlko Diesel Oil Benefits
Extreme Service Protection
Delivers superior wear and corrosion resistance under heavy loads, extending engine life and minimizing downtime.
Optimized for All Conditions
Fully synthetic XTREME Conditions oil designed for mission critical applications, ensuring reliable performance in extreme temperatures.
Engineered for Longevity
Engineered for Longevity Low SAPS formulation protects modern after treatment systems, reducing compliance risks and lowering environmental impact.
Enhanced Efficiency & Lower Costs
Created to support longer oil drain intervals, maximizing fuel efficiency and reducing overall operating expenses.
How Rehlko Oil Protects Your Engine Over Time
Considerations for selection are:
Climate Impact and Cold‑Temperature Flow
In extreme low temperatures, synthetic oils remain fluid for easier starts and better flow compared with conventional oils used in similar conditions.
Service History and Oil Compatibility
Choose synthetic oil for new engines, and keep using conventional oil for older engines that have always operated with traditional lubricants.
Outage Cost and Oil Performance Needs
When outage risks carry high financial or operational impact, a high performance synthetic oil becomes essential to reduce failure likelihood and protect equipment.
Site Accessibility and Extended Run Protection
If reaching the site during an outage takes time, synthetic oils provide added safety by resisting burn off and maintaining stable viscosity during long operating periods.
Reliable everywhere, supported where you are.
Find the best oil for your generator set application with your nearest Rehlko authorized distributor.
They’ll see you through your complete service and maintenance needs and can help you choose the best Performance Care 360 service plan to protect your investment.