Protect your engine with Penrite HPR Diesel 15 15W-50 Semi Synthetic Engine Oil, a premium high-performance lubricant designed to provide reliable engine wear protection, effective deposit control and dependable performance under demanding operating conditions. Formulated with semi synthetic base oils, FULL ZINC anti-wear technology and Penrite's advanced EXTRA TEN technology, it helps protect critical engine components against wear, corrosion, oxidation and sludge formation while supporting long-term engine cleanliness and reliability.

Over time, engines can experience increased wear, soot accumulation, sludge formation and deposit build-up caused by high operating temperatures, combustion by-products and demanding driving conditions. These factors can affect engine efficiency, oil pressure and long-term durability, particularly in diesel engines operating under heavy loads. Penrite HPR Diesel 15 15W-50 is formulated with advanced additives, increased dispersant levels and low-shear viscosity modifiers to help control contaminants and maintain reliable lubrication. Its FULL ZINC additive package supports engine wear protection, while EXTRA TEN technology provides an additional layer of protection at operating temperatures, helping maintain oil pressure and reduce oil consumption in suitable applications.

Designed for modern 4, 6, 8-cylinder and larger engines, Penrite HPR Diesel 15 15W-50 is suitable for naturally aspirated, supercharged and turbocharged engines, including compatible common rail and direct injection applications. It is recommended for vehicles where SAE 15W-40, 15W-50 or 20W-40 engine oil was originally specified by the manufacturer. Suitable for compatible diesel, petrol, E10 and LPG-powered vehicles and equipment, it is ideal for passenger cars, 4WDs, commercial vehicles, trucks, tractors, agricultural machinery and industrial equipment. Always confirm the correct oil viscosity and performance specifications in the vehicle or equipment manufacturer's handbook before use.

Features & Benefits

• Semi synthetic formulation provides reliable lubrication and engine protection under demanding operating conditions.
• SAE 15W-50 viscosity supports dependable lubrication across a range of operating temperatures.
• FULL ZINC anti-wear additive technology helps protect critical engine components against wear.
• EXTRA TEN technology provides an additional layer of protection at operating temperatures.
• Double-layer engine wear protection helps support long-term engine durability.
• Increased dispersant levels help control soot and contaminant build-up, particularly in diesel engines.
• Low-shear viscosity modifiers help maintain lubricant performance under demanding conditions.
• Helps protect against corrosion, oil oxidation and sludge formation.
• Supports engine cleanliness by helping minimise harmful deposits.
• Helps maintain oil pressure and reduce oil consumption in suitable applications.
• Designed for naturally aspirated, supercharged and turbocharged engines.
• Suitable for compatible common rail and direct injection diesel engines.
• Compatible with selected diesel, petrol, E10 and LPG-powered applications.
• Meets a range of industry and manufacturer performance requirements, including API CI-4 PLUS/SL and ACEA A3/B4/E7.
• Suitable for compatible motorcycles with wet clutches where the required oil specification is met.
• Designed for passenger vehicles, commercial fleets, agricultural machinery and industrial equipment requiring the specified oil grade.

Technical Specifications

Oil Type

Semi Synthetic Engine Oil

Viscosity Grade

SAE 15W-50

Base Oil

Semi Synthetic

Additive Technology

FULL ZINC and EXTRA TEN

API Specifications

API CI-4 PLUS/SL

ACEA Specifications

ACEA A3/B4/E7

Additional Performance Specifications

Ford M2C171-C, Ford M2C153-F/G, JASO DH-1, JASO MA, Mercedes-Benz MB 228.3/229.3 and other listed applicable performance levels.

Suitable Fuel Types

Diesel, petrol, E10 and LPG/dual fuel.

Typical Kinematic Viscosity at 40°C

142 cSt

Typical Kinematic Viscosity at 100°C

19.0 cSt

Typical Viscosity Index

152

Typical Total Base Number (TBN)

11.1

Available Pack Sizes

1L, 5L, 7L, 10L, 20L, 60L and 205L, subject to availability.

Note: Penrite HPR Diesel 15 15W-50 is not recommended for diesel engines fitted with a diesel particulate filter (DPF) that require an ACEA C-grade low- or mid-SAPS engine oil. Always confirm the manufacturer's required viscosity and performance specifications before use.

Directions

Check the vehicle or equipment manufacturer's handbook to confirm the correct engine oil viscosity and required performance specifications.

Ensure the engine is switched off and the vehicle or equipment is parked safely on a level surface before checking or changing the oil.

Drain the existing engine oil according to the manufacturer's recommended servicing procedure.

Replace the oil filter where required by the manufacturer's service schedule.

Refill the engine with Penrite HPR Diesel 15 15W-50 Semi Synthetic Engine Oil according to the specified oil capacity. Avoid overfilling.

Check the engine oil level using the dipstick or electronic oil level monitoring system, following the manufacturer's instructions.

Inspect for leaks around the oil filter, drain plug and other serviced components.

Follow the manufacturer's recommended oil change intervals, taking into account heavy loads, towing, commercial operation and other demanding driving conditions.

When changing oil, consider using Penrite Engine Flush according to the product instructions and the engine manufacturer's recommendations.

Dispose of used engine oil and filters responsibly through an appropriate recycling or collection facility.

Suitable For

• Compatible diesel engines requiring SAE 15W-50 engine oil.
• Selected petrol engines requiring the relevant oil specifications.
• Naturally aspirated, supercharged and turbocharged engines.
• Compatible common rail and direct injection diesel engines.
• Passenger cars and SUVs requiring the specified oil grade.
• Compatible 4WDs and off-road vehicles.
• Light and heavy commercial vehicles and trucks.
• Tractors and agricultural machinery.
• Construction and earthmoving equipment.
• Industrial machinery, forklifts and stationary engines.
• Compatible LPG and dual-fuel applications.
• Selected motorcycles with wet clutches requiring a suitable oil specification.
• Fleet vehicles operating under demanding conditions.
• Applications where SAE 15W-40, SAE 15W-50 or SAE 20W-40 is recommended by the manufacturer.
• Applications requiring API CI-4, Global DLD-1, DLD-3, DHD-1 or JASO DH-1 specifications.

Common Signs You May Need to Replace Your Engine Oil

• Engine oil has reached the manufacturer's recommended replacement interval.
• Engine oil appears excessively dark, dirty or contaminated.
• Oil levels drop and require frequent topping up.
• The engine becomes noisier than usual during operation.
• Sludge or deposits are identified during engine inspection or servicing.
• Diesel soot contamination has affected the condition of the oil.
• The engine has been operating under high temperatures or heavy loads.
• The vehicle has been used for towing, commercial work or demanding off-road driving.
• The vehicle or equipment's service history is unknown.
• Engine repairs or maintenance require fresh oil and a replacement filter.
• The existing engine oil does not meet the manufacturer's required viscosity or performance specification.

Using Penrite HPR Diesel 15 15W-50 Semi Synthetic Engine Oil helps protect critical engine components against wear, supports soot and deposit control, and maintains reliable lubrication under demanding operating conditions. Its FULL ZINC additive package and EXTRA TEN technology provide an additional layer of protection for compatible diesel and petrol engines, making it a suitable choice for passenger vehicles, commercial fleets, agricultural machinery and industrial equipment. For best results, always use the correct oil specification and follow the engine manufacturer's maintenance recommendations.