What Type of Base Oil is Castrol Edge?
2 Answers
Castrol Edge is a Group 3 base oil. Castrol Edge is a fully synthetic engine oil. The method for changing the engine oil is as follows: 1. Lift the vehicle, remove the undercover, and place a container of about 10 liters under the oil drain plug; 2. Unscrew the oil drain plug, use an air gun to blow for two minutes at the oil filler port, after draining, tighten the oil drain plug and wipe it with a tissue to check for oil leaks; 3. Reinstall the undercover and lower the vehicle, use a funnel to align with the oil filler port and add the engine oil. The functions of engine oil include: lubrication and anti-wear, auxiliary cooling, cleaning, sealing and leak prevention, rust and corrosion prevention, and shock absorption. The classification of engine oil: 1. Conventional mineral oil; 2. Semi-synthetic oil; 3. Fully synthetic oil.
I've been working in the auto repair shop for nearly ten years and have seen many car owners inquire about Castrol Edge. It primarily uses Group III base oils with some Group IV synthetic oil added. Group III oils are the best among mineral oils, processed through hydrocracking, offering excellent cleaning performance. For cars in the shop with 70,000 to 80,000 kilometers on them, when we open up the engine, there's basically no sludge, which shows the base oil quality is top-notch. However, compared to full synthetic oils made purely with Group IV PAO, Edge is slightly inferior in low-temperature fluidity. I recommend choosing based on your car's condition; it's perfectly adequate for regular family cars.
