CK-4 10W-30 Full Synthetic Diesel Engine Oil Fuel Economy Extended Drain For Long Haul Truck Fleets

CK-4 10W-30 Full Synthetic Diesel Engine Oil for Long Haul Fleets

This CK-4 10W-30 full synthetic diesel engine oil is engineered for fleets that measure lubricant cost in fuel bills and workshop hours, not just in litres. Compared with a conventional CI-4 15W-40, the lower viscosity grade combined with a full synthetic base oil cuts viscous drag in the crankcase and holds its grade under high shear — which is where real fuel savings and real drain-interval extension come from.

Why 10W-30 Full Synthetic Changes the Economics

• Measurable fuel economy gain — the lower HTHS profile of 10W-30 typically returns 1–2% fuel saving against 15W-40 in long-haul duty, which on a 120,000 km annual cycle pays for the oil several times over.
• Extended drain capability — full synthetic base stock plus a high-performance oxidation inhibitor package supports drain intervals up to 60,000 km or 600 hours, subject to oil analysis confirmation.
• Stay-in-grade shear stability — the VI improver system resists permanent viscosity loss in high-pressure injector and EGR service, so the oil you fill is the oil that protects at the end of the interval.
• Cleaner piston and ring belt — high detergency keeps top-ring grooves free and reduces bore polishing, the usual cause of rising oil consumption in high-hour engines.

Built for Aftertreatment: Low SAPS with DPF and SCR Compatibility

Euro V, Euro VI and EPA 2010 engines put the aftertreatment system downstream of the sump, and the oil has to protect it. This grade is formulated with sulfated ash at or below 1.0% to limit ash loading and channel blocking in diesel particulate filters, while keeping phosphorus at a level that protects valvetrain surfaces without poisoning catalysts. It is suitable for engines running cooled EGR, SCR and DPF together, which is now the standard configuration in most export markets.

Performance and Typical Technical Data

Performance levels targeted: API CK-4, ACEA E9, Mack E-O-O Premium Plus, Detroit Diesel DFS 93K222. Always confirm the approval status printed on the drum label against your engine maker's current lubricant list before extending drain intervals.

Recommended Applications

• Long-haul and regional semi trucks running Euro V / Euro VI or EPA 2010 engines with DPF and SCR.
• Coach and city buses on high-utilisation duty cycles where fuel economy and drain interval both matter.
• Off-highway trucks and construction fleets operating in ambient temperatures from -30 °C to +40 °C.
• Mixed fleets standardising on one low-SAPS grade to simplify storage and prevent top-up errors.

Packaging and Supply

• 4 L, 18 L, 20 L plastic pails — workshop and service-van supply.
• 200 L steel drums and 1000 L IBC totes — fleet depot and distributor supply.
• Private label and OEM-branded packaging available from 5,000 L per order.
• Batch-specific certificate of analysis issued with every shipment.

Why Buyers Choose This Grade

Buyers who already run 15W-40 CI-4 usually move to this product for one of two reasons: they are burning too much fuel per 100 km, or their engines are newer than their oil. Both are answered by the same change — a lower-viscosity full synthetic that keeps the wear protection, keeps the aftertreatment clean, and survives the full interval without shearing out of grade.

Need to validate it against your fleet? Send us your engine models, duty cycle and current drain interval, and we will confirm grade suitability and quote FOB or CIF pricing with a sample schedule.