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 Genuine 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 advanced synthetic formulations or a proven conventional oil, Rehlko delivers superior protection and efficiency in any condition.
Stay moving with Rehlko Diesel Oils
Our XTREME Conditions 5W-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
Superior wear and corrosion resistance under heavy loads.
Benefit: Extends engine life and minimizes downtime.
Optimized for All Conditions
Fully synthetic oil for mission-critical applications.
Benefit: Reliable performance in extreme temperatures.
Engineered for Longevity
Low-SAPS formulation protects modern after-treatment systems.
Benefit: Reduces compliance risks and environmental impact.
Enhanced Efficiency & Lower Costs
Formulated for longer oil drain intervals.
Benefit: Maximizes fuel efficiency and lowers operating costs.
Stay moving with Rehlko Gaseous Oils
Rehlko gaseous-fueled generator oils are engineered for durability and efficiency—reducing seasonal maintenance demands and extending engine life.
Rehlko Gaseous Oil Benefits
Fully Synthetic Formulation
XCELL Performance 10W-40 and XTREME Conditions 15W-40 are 100% synthetic.
Benefit: Superior durability across wide temperature ranges.
Long-Term Wear Protection
Zinc/phosphorus additives and low-ash formulation.
Benefit: Extends engine life and improves reliability.
Engine-Specific Engineering
Designed exclusively for Rehlko gaseous-fueled generators.
Benefit: Optimizes performance and reduces unexpected repairs.
Enhanced Chemical Additives
Minimizes deposits and improves fuel efficiency.
Benefit: Cleaner engines mean better reliability and fewer downtime issues.
How Rehlko Oil Protects Your Engine Over Time
Considerations for selection are:
Service History
What type of oil has been used in the past?
Use synthetic oils in new engines.
Use conventional oils in older engines that have always used conventional oils.
Cost of Outage
What is the financial and non-financial cost if there is an outage?
As the cost of failure increases, so does the need for a high-performance synthetic oil.
Location Accessibility
How quickly can you reach the site during an outage?
Synthetic oils provide a safety margin for performance in extended run conditions as it minimizes oil burn off and maintains viscosity.
Climate
What are the extreme low temperatures in the region?
Synthetic oils remain fluid in frigid temps – easy starts, improved flow.*
* Claims are compared to conventional oils used in the same applications.
