Shell Helix Ultra ECT C3 5W-30
Shell Helix Ultra ECT C3 5W-30 is a premium fully synthetic motor oil designed to deliver exceptional engine protection while supporting the efficiency of modern vehicle emission control systems. The oil uses Shell’s advanced emissions-compatible technology (ECT) combined with high-quality synthetic base oils and carefully balanced additive technology to ensure reliable lubrication performance across a wide range of operating conditions. This formulation is specifically engineered to protect modern engines while maintaining the performance of diesel particulate filters and catalytic converters.
One of the key advantages of Shell Helix Ultra ECT C3 5W-30 is its ability to protect emission control systems. Modern diesel particulate filters and catalytic converters are sensitive to ash-forming compounds that can accumulate during engine operation. The oil’s low-SAPS formulation helps minimise sulphated ash, phosphorus and sulphur levels, helping prevent ash build-up within emission systems. By keeping particulate filters clean, the oil helps maintain efficient exhaust flow and consistent engine performance.
The oil also provides outstanding engine cleanliness. During normal engine operation, combustion by-products can accumulate inside the engine, leading to sludge and deposit formation. Shell’s ultimate active cleansing technology helps prevent the formation of harmful deposits while keeping engine components clean. Maintaining cleaner internal surfaces helps preserve engine efficiency and ensures consistent performance over time.
Another important benefit of the oil is its excellent wear protection. The formulation forms a strong lubricating film that helps reduce metal-to-metal contact between moving engine components such as pistons, camshafts and bearings. This protective film helps minimise wear and contributes to longer engine life. Testing demonstrates that the oil provides superior protection compared with minimum industry requirements, ensuring dependable lubrication even under demanding operating conditions.
Shell Helix Ultra ECT C3 5W-30 also contributes to improved fuel efficiency. Its low viscosity and reduced friction characteristics allow engine components to move more freely, reducing internal energy losses. According to fuel economy testing, the oil can deliver up to approximately 2.3 percent greater fuel efficiency compared with industry reference oils. Reduced friction also supports smoother engine operation and improved overall efficiency.
The oil demonstrates strong resistance to oxidation and mechanical stress. Special antioxidant additives help maintain lubrication performance throughout the oil drain interval while ensuring the oil maintains its viscosity and stays within grade during demanding operating conditions. This stability helps provide consistent protection throughout the service life of the lubricant.
Shell Helix Ultra ECT C3 5W-30 is suitable for modern gasoline engines, diesel engines equipped with particulate filters and gas engines. It can also be used in hybrid vehicles. The oil meets major industry standards including API SN and ACEA C3 and carries manufacturer approvals including BMW Longlife-04, Mercedes-Benz MB-Approval 229.52, 229.51 and 229.31, as well as Chrysler MS-11106.
Physical characteristics include a kinematic viscosity of approximately 69.0 mm²/s at 40°C and 12.1 mm²/s at 100°C with a viscosity index of around 174. The oil has a flash point of approximately 238°C, a pour point of approximately –45°C and a density of around 836.1 kg/m³ at 15°C. These properties support reliable lubrication performance across a wide range of operating temperatures and driving conditions.
