What type of engine oil should be used for the Changan Oshan X5?
3 Answers
Changan Oshan X7 uses engine oil with the specification 5W-30. The X7 utilizes original manufacturer-branded engine oil. For subsequent maintenance and oil changes, you may choose from brands such as Shell, Mobil, Castrol, or Total. The viscosity of engine oil changes with temperature, so it's crucial to pay attention to its performance under both low and high temperatures. For example, in 5W-30, the first number indicates low-temperature fluidity. 5W means it can withstand temperatures as low as -30°C. The smaller this number, the better the low-temperature fluidity, ensuring smoother cold starts for the vehicle. The latter number represents the oil's kinematic viscosity at 100°C. A higher value indicates better ability to maintain viscosity under high temperatures, which can also be interpreted as better lubrication performance in high-temperature conditions. The method for changing the engine oil in the Changan Oshan X7 is as follows: Wait for the engine temperature to cool down, allowing the oil to flow back into the oil pan; Use a wrench to loosen the drain plug and place an oil pan underneath to catch the old oil until it stops flowing. Start the engine for about 30 seconds to allow the oil in the main oil passage to drain out; Use a specialized wrench to remove the oil filter; Apply engine oil to the oil seal of the new oil filter and tighten it clockwise by hand; Add the new engine oil through the filler cap on the engine valve cover, typically filling about three-quarters of the oil container; Start the engine and let it run for 5 minutes, checking for any leaks around the drain plug and oil filter. If leaks are found, perform necessary repairs; After stopping the engine, pull out the dipstick to check that the engine oil level is within the standard range.
As a practitioner who frequently deals with such issues, I can confidently say that the Changan Oshan X5 officially recommends using 5W-30 synthetic engine oil, as this viscosity provides good fluidity during cold starts in winter while maintaining smooth engine lubrication under high summer temperatures. Regular oil changes are crucial—it's advised to replace the oil every 5,000 to 7,500 kilometers or every 6 months, as degraded oil increases engine wear. Choosing synthetic oil with API SP certification is the safest option, while conventional mineral oils are less suitable. If you're in a cold region, 0W-20 may also be appropriate, but always check the manual first. During oil changes, remember to inspect the oil filter for proper function, as accumulated impurities can clog the system and affect performance. Driving habits like smooth acceleration can extend oil life, while avoiding frequent short trips that cause unstable oil temperatures is also beneficial.
I've been driving my Changan Oshan X5 for several years, always using 5W-30 full synthetic oil, and I feel the engine runs quieter and more fuel-efficient. I used cheaper mineral oil before, not only did the engine noise increase, but cold starts in winter always felt sluggish, and the oil change intervals were much shorter, wasting money. When choosing engine oil, don't just focus on the brand; the key is to look at the SAE viscosity and certification standards. The manufacturer's manual clearly states that 5W-30 is suitable. I usually change it every 7,500 kilometers when I drive mostly on highways, and a bit earlier in city traffic jams. Checking the oil level is simple—after parking, pull out the dipstick to see if it's between the min and max marks. Too much oil can cause oil pressure issues. In hot weather, the oil temperature doesn't vary much, but signs of oil leaks, like oil stains on the ground, should be addressed promptly.
