Should Ford Edge use 5W-30 or 40 engine oil?
2 Answers
Ford Edge is better suited with 5W-30 engine oil. The reasons are as follows: 1. Semi-synthetic oil: The original factory oil used for Ford Edge is Changan Ford's specialized engine oil with a viscosity grade of 5W-30, which is a semi-synthetic oil. 2. Better protection performance: The difference between 5W-30 and 0W-40 is that 0W-40 oil has better fluidity in low-temperature environments and higher viscosity in high-temperature environments, providing better protection performance, but it also relatively increases the vehicle's fuel consumption. Additional information: The main functions of engine oil are as follows: 1. Lubrication and friction reduction: It forms an oil film on the surfaces of two sliding components, preventing friction during operation and ensuring smooth operation. 2. Auxiliary cooling: The engine generates high temperatures during operation. When the oil reaches the operating parts, it absorbs heat and then carries the heat away, assisting in cooling the components. 3. Cleaning: It can carry carbon deposits, sludge, and worn metal particles from engine parts back to the oil tank through circulation, and flush away dirt generated on the working surfaces of the parts through the flow of the lubricating oil. 4. Sealing and leak prevention: The oil can form a seal between the piston rings and the piston, reducing gas leakage and preventing external pollutants from entering. 5. Rust and corrosion prevention: The lubricating oil can prevent water, air, acidic substances, and harmful gases from coming into contact with the parts. 6. Shock absorption: When the pressure at the engine cylinder port rises sharply, suddenly increasing the load on the piston, piston pin, connecting rod, and crankshaft bearings, this load is transmitted through the bearing lubrication, cushioning the impact load.
I've been driving a Ford Edge for almost ten years. At first, I also struggled with whether to use 5W-30 or 40, but later I followed the manual and chose 5W-30, which worked perfectly fine. The manual clearly states that 5W-30 is recommended for the Edge. Its viscosity ensures smooth cold starts, quick engine response, and fuel efficiency, especially during Beijing's freezing winters. I tried 5W-40 a few times for highway driving and felt the engine response was slightly slower, with higher fuel consumption. It worked okay in summer but wasn't necessary. My advice is to stick with the manual for daily driving—don't switch randomly, or it might cause excessive engine wear due to improper lubrication. Regular oil changes every 8,000 km are ideal for saving money and ensuring safety. Also, check the oil filter during changes, and avoid cheap, off-brand oils—compromising engine longevity isn't worth it.
