Shell Helix Ultra ECT C2/C3 0W-30
Shell Helix Ultra ECT C2/C3 0W-30 is a premium fully synthetic motor oil designed to provide advanced engine protection while maintaining the efficiency of modern vehicle emission systems. The oil is formulated using Shell’s most advanced emissions-compatible technology (ECT) combined with high-quality synthetic base oils and carefully balanced additives. This formulation helps protect critical engine components while ensuring compatibility with modern emission control systems such as diesel particulate filters and catalytic converters.
One of the key advantages of Shell Helix Ultra ECT C2/C3 0W-30 is its ability to protect vehicle emission systems. Modern diesel particulate filters are sensitive to ash deposits that can accumulate during engine operation and reduce exhaust system efficiency. The oil’s low-SAPS formulation helps minimise sulphated ash, phosphorus and sulphur levels, preventing deposit build-up within emission control systems. By helping to keep particulate filters clean, the oil supports consistent engine performance and helps maintain emission system efficiency.
The oil also provides outstanding engine cleanliness. During engine operation, combustion by-products can accumulate and form sludge and deposits inside the engine. Shell’s ultimate active cleansing technology helps prevent the formation of harmful deposits while keeping internal engine components clean. Maintaining a clean engine helps preserve power output, maintain fuel efficiency and ensure reliable performance over time.
Another important benefit of the oil is its excellent wear protection. The formulation forms a durable lubricating film that helps reduce metal-to-metal contact between moving engine components. Testing shows the oil provides significantly improved wear protection compared with industry performance standards, helping protect critical components such as pistons, camshafts and bearings under demanding operating conditions. This protection contributes to longer engine life and reliable long-term performance.
Shell Helix Ultra ECT C2/C3 0W-30 also delivers improved fuel efficiency. The oil’s low viscosity and reduced friction characteristics allow engine components to move more freely, reducing internal energy losses. Fuel economy testing indicates that the oil can deliver up to approximately 2.6 percent greater fuel efficiency compared with industry reference oils. Reduced friction also contributes to smoother engine operation and improved overall efficiency.
The oil also demonstrates excellent 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 supports consistent engine protection and extended service intervals.
Shell Helix Ultra ECT C2/C3 0W-30 is suitable for modern gasoline engines, diesel engines equipped with particulate filters and gas engines. It is also suitable for vehicles currently using SAE 5W-30 or 10W-30 oils and may provide enhanced protection and improved fuel efficiency. The oil meets key industry standards including API SN and ACEA C2 and C3 and carries major manufacturer approvals including Volkswagen VW 504.00 and 507.00, Mercedes-Benz MB-Approval 229.52, 229.51 and 229.31, and Porsche C30.
Physical characteristics include a kinematic viscosity of approximately 58.70 mm²/s at 40°C and 11.90 mm²/s at 100°C with a viscosity index of around 204. The oil has a flash point of approximately 226°C, a pour point of approximately –51°C and a density of around 838 kg/m³ at 15°C, supporting reliable lubrication performance across a wide range of operating temperatures.

