Shell Helix Ultra Professional AR-L 5W-30
Shell Helix Ultra Professional AR-L 5W-30 is a premium fully synthetic motor oil developed to meet the demanding lubrication requirements of modern high-performance diesel engines. The oil is formulated using advanced synthetic base oils and carefully balanced additive technology to provide excellent engine protection, reliable fuel efficiency and consistent lubrication performance across a wide range of operating conditions. It has been specifically engineered to meet the technical requirements of Renault diesel engines and other modern engines requiring low-SAPS ACEA C4 lubricants.
One of the key advantages of Shell Helix Ultra Professional AR-L 5W-30 is its compatibility with modern emission control systems. The oil features a low-SAPS formulation, meaning it contains reduced levels of sulphated ash, phosphorus and sulphur. This helps protect diesel particulate filters from ash accumulation that could otherwise restrict exhaust gas flow or reduce the efficiency of emission control systems. By helping maintain clean emission systems, the oil supports consistent engine performance and reliable vehicle operation.
The oil also provides excellent wear protection for critical engine components. During engine operation, parts such as pistons, camshafts and bearings operate under high loads and temperatures. Shell Helix Ultra Professional AR-L 5W-30 forms a durable lubricating film that reduces metal-to-metal contact between moving engine components. The oil successfully passes demanding durability tests including the Sequence IVB valvetrain wear test, demonstrating its ability to provide reliable protection against wear in modern high-performance engines.
Another important benefit of the oil is its ability to maintain engine cleanliness. Combustion by-products and degraded oil can accumulate inside the engine and lead to sludge and deposit formation over time. Shell Helix Ultra Professional AR-L 5W-30 is formulated to resist deposit formation and maintain clean engine internals. The oil passes several engine cleanliness tests including the Volkswagen TDI piston cleanliness test and the Sequence VG sludge test, demonstrating its ability to maintain clean internal surfaces and support long-term engine performance.
The oil also provides effective soot control, which is particularly important for diesel engines. Soot particles generated during combustion can accumulate within engine oil and contribute to deposit formation if not properly dispersed. Shell Helix Ultra Professional AR-L 5W-30 effectively disperses soot particles through advanced additive technology, helping maintain oil cleanliness and ensuring consistent lubrication performance throughout the oil drain interval.
Shell Helix Ultra Professional AR-L 5W-30 is approved against the Renault RN0720 specification and meets ACEA C4 performance requirements. These specifications require lubricants to pass demanding manufacturer tests that evaluate wear protection, oxidation resistance, sludge control and compatibility with emission control systems. The oil also meets Mercedes-Benz MB-Approval 226.51 and the requirements of FCA 9.55535-S4, confirming its suitability for a range of modern diesel engines.
Physical characteristics include a kinematic viscosity of approximately 67.1 mm²/s at 40°C and 12 mm²/s at 100°C with a viscosity index of around 178. The oil has a density of approximately 847 kg/m³ at 15°C, a flash point of approximately 230°C and a pour point of approximately –39°C. These properties support reliable lubrication performance across a wide range of operating temperatures and driving conditions.
