
Mitsubishi Outlander uses 5W30 engine oil. The following is the relevant introduction of engine oil: 1. Reduce wear: There is rapid relative sliding between the piston and the cylinder, as well as between the main shaft and the bearing. To prevent excessive wear of parts, an oil film of sufficient thickness needs to be established between the two sliding surfaces to separate the relatively sliding parts, thereby reducing wear and extending mechanical life. 2. Cooling: Engine oil helps the radiator cool the engine and expels heat from the engine. 3. Sealing and leakage prevention: Engine oil can form a sealing ring between the piston ring and the piston, reducing gas leakage and the entry of pollutants. 4. Shock absorption: When the pressure at the engine cylinder port rises sharply, the load on the piston, piston pin, connecting rod, and crankshaft bearings suddenly increases. This load is transmitted and lubricated through the bearings, cushioning the impact load.

I've been driving the Outlander for five or six years and always insist on using full synthetic oil, as recommended in the manual—usually 5W-30 or 0W-20, depending on the year. In the hot south, I use 5W-30 for better high-temperature engine protection, while in colder winter regions, 0W-20 ensures smoother starts. Full synthetic oil offers numerous benefits: excellent carbon deposit cleaning, significantly reduced engine noise, and a 'younger' feel with every refuel. The oil change interval also extends to 8,000–10,000 km, saving both money and hassle. Never skimp on oil costs—mineral oil may seem cheaper, but it accumulates grime quickly, requiring changes every 5,000 km and causing greater engine wear. I also check the dipstick regularly and top up when levels are low to avoid cylinder damage. When selecting oil, pay attention to the API SN rating and ensure it’s from a reputable brand. These practices have kept my car running strong even after over 100,000 km.

As a young car owner using it for daily commuting, I prioritize convenience and effectiveness when choosing engine oil. For my Outlander, I use either semi-synthetic or fully synthetic oil, such as 5W-30 viscosity, as clearly recommended in the manual. During hot weather, I opt for thicker oil to protect the engine during high-temperature operation; in winter, I switch to 0W-20 thinner oil for quicker and smoother starts. I prefer reputable brands like Shell or Mobil, but the key is to check the API certification. I usually buy online for transparent pricing and doorstep delivery, saving the hassle of visiting a store. I change the oil myself with simple tools every 7,500 kilometers, replacing the oil filter as well. This way, I maintain my car while learning something new, keeping costs under control. Occasionally, I add a bottle of additive to enhance lubrication. The result? The engine runs as smoothly as new.

From the perspective of someone who has worked in the workshop, Outlander's engine oil selection must be precise. It is recommended to use full synthetic 5W-30 or 0W-20, with API SN specification as the minimum requirement to avoid cylinder blockage by impurities. Oil viscosity that's too high affects fuel economy, while too low reduces lubrication. Environmental reference: use thinner oil in the north for better cold starts, and thicker oil in the south for better high-temperature resistance. The oil change interval is around 10,000 kilometers, along with oil filter replacement. When doing it yourself, check the oil color: change it if it turns black, don't delay. Synthetic oil reduces friction loss and extends engine life. The price difference isn't significant, so choose reliable channels to avoid counterfeit products. Regularly check oil pressure to prevent leaks. These small tips keep your car's performance stable.


