DURON™ provides excellent soot control and wear protection for your older engines. Maximizing longevity means minimizing the costly, damaging effects of soot. On-road or off-road, make DURON your engine oil of choice in the battle against downtime.

Fights soot in tough operating conditions

DURON is the heavy duty diesel engine oil with proven soot-fighting performance and savings. DURON is proven to provide long lasting protection to diesel engines from wear and reduce maintenance costs under the toughest conditions.

Protection

Minimizing engine wear is critical to reducing downtime and extending the life of your engine. By controlling soot, DURON offers exceptional defence against wear.

• Soot particles left uncontrolled can agglomerate and harden into abrasive clumps that can scratch and score critical engine components.
• Higher soot loads will increase the oil's viscosity — that can leave engine components under-lubricated.
• Poor shear stability can reduce film thickness of the oil. Effective piston sealing relies on a strong oil film to prevent soot and other contaminants from moving past the rings to get to critical engine components, where damaging wear can occur.

Extended drain intervals

DURON helps you to safely and confidently extend drain intervals1 — keeping your equipment running longer and saving you money. It's been proven to maintain its soot fighting abilities, and stay in-grade longer.

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All-weather performance

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You can also rest assured that your engine will be well protected in a variety of weather conditions. In the harsh cold, you can rely on DURON's excellent cold-cranking and cold-pumping properties to ensure you get the performance and protection you need. In extreme high temperatures, you can rely on DURON's advanced shear stability formulation to maintain its stay-in-grade performance throughout extended operations ensuring continued protection of your engine.

There's a DURON product to suit the needs of your fleet

Compare each DURON product and find one that suits your needs:

DURON Synthetic Blends
Product	DURON XL 15W-40	DURON XL Synthetic 10W-40	DURON XL Synthetic 0W-30
Summary	Advanced soot control and durable protection. Save money by increasing engine reliability and minimizing downtime	Formulated for excellent performance in cold weather conditions and advanced soot protection	API CH-4 licensed and meets the requirements of Caterpillar ECF-1-a, Mack EO-M Plus and Cummins 20076 with higher oil film strength than is required by SAE J300 for 0W-30 multigrade engine oils
Key Benefits	Advanced soot control	Advanced soot control	Advanced soot control
	Exceptional protection and performance in all-weather conditions	All-weather product performance	Excellent pumpability
	Excellent extended drain capabilities1	Exceptional protection and performance in all-weather conditions	Engine will be well protected even in harshest cold conditions
	Exceptional protection and performance in all-weather conditions	Faster cold start-ups without compromising high temperature engine performance	Excellent start-ups in temperatures as low as -40°C conditions
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DURON Synthetic
Product	DURON Synthetic 0W-30	DURON Synthetic 5W-40
Summary	Provides advanced soot control and excellent engine protection in the extreme cold	The ultimate in all-weather protection and performance
Key Benefits	Advanced Soot Control	Advanced Soot Control formula exceeds the requirements of API CI-4+
	This API CH-4 licensed lubricant will remain stable at -40°C/-40°F temperatures and it has a much higher film strength than typical SAE 30 grade oils	In cold conditions it can also help to conserve energy through quick, reliable, unassisted start-ups and through lower viscous drag
	Use this oil for faster cold weather start-ups with less engine stress and better pumpability and to ensure all engine components are adequately lubricated	Proven to have extended drain capabilities1 in pre 2007 engines — saving you downtime and maintenance costs
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DURON 15W-40
Product	DURON 15W-40
Summary	An effective choice when you need dependable API CI-4+ performance in your low emission or legacy engines
Key Benefits	Advanced soot control that exceeds the requirements of API CI-4+
	Demonstrated extended drain capabilities in severe service field trials in both new and older engine designs
	Demonstrated good cold start-up performance, minimizing engine wear and oil consumption
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¹Extended Drain Intervals should always be undertaken with a regular oil analysis program.