
It can run for 5000 kilometers. The following is the relevant introduction of engine oil: 1. Grade division: 10W-40 is its SAE standard viscosity value. This viscosity value first indicates that this oil is multi-grade oil. W stands for WINTER, and the number in front of W represents the flow performance at low temperatures. The smaller the number, the better the starting performance at low temperatures. The number behind W represents the stability of the oil at high temperatures (i.e., the possibility of thinning). The larger the number, the better the stability of the oil at high temperatures. 2. Function: There is rapid relative sliding between the piston and the cylinder, and between the main shaft and the bearing bush. To prevent excessive wear of the parts, an oil film needs to be established between the two sliding surfaces. A sufficiently thick oil film separates the surfaces of the relatively sliding parts, thereby achieving the purpose of reducing wear.

I've always driven cars and used the green barrel engine oil, changing it approximately every 10,000 kilometers because the Honda manual clearly recommends 10,000 kilometers or 12 months, whichever comes first. If you're an ordinary office worker like me, driving gently every day without racing or towing heavy loads, running 10,000 kilometers is completely fine. However, it's important to note that the quality of engine oil deteriorates over time. If you drive infrequently and the car sits idle for more than six months, you should change the oil even if the mileage hasn't been reached. Otherwise, insufficient engine protection can lead to wear and tear, which in the long run can actually save you money. In short, following the manufacturer's recommendations is the safest approach, and developing a habit of regular maintenance is key.

Having driven a for over a decade, I've noticed that the durability of the green barrel oil is quite affected by driving style. For instance, when I frequently drive long distances on highways with lower engine load, the oil consumption is slower. I once tried changing it after 12,000 kilometers, and the oil test results were still acceptable. However, with daily city driving in heavy traffic, frequent short trips, and multiple starts, the engine heats up quickly, accelerating oil aging. By 8,000 kilometers, the oil noticeably thins. It's advisable to adjust based on actual road conditions. Pay attention to engine noise while driving; if there are unusual sounds during acceleration or a sudden increase in fuel consumption, changing the oil early is beneficial—ensuring safety and prolonging the vehicle's lifespan.

When my old Accord used green barrel oil, it could easily last until the 10,000-kilometer oil change during the new car phase. However, as the car aged, especially after exceeding 100,000 kilometers, the engine gaps increased, and oil consumption became faster. I usually change it within 7,000 kilometers to avoid insufficient protection. Additionally, don’t forget to check the dipstick. If the oil turns black or contains impurities, even if the mileage is low, it needs maintenance in advance. More frequent maintenance is better for the engine of an old car.

I drive a in the southern region and usually change the green barrel engine oil every 9,500 to 10,000 kilometers. However, due to the high temperature and humidity here, the oil tends to absorb moisture and deteriorate. During the scorching summer, I reduce the interval to within 9,000 kilometers. In the slightly colder winter, it can last just over 10,000 kilometers. Temperature has a significant impact. Friends in the north say that in extreme cold, engine oil's fluidity decreases, so they recommend shortening the interval to within 8,000 kilometers to prevent starting difficulties. Regular maintenance is crucial.

I conducted a small test using green barrel engine oil while driving my Civic to work for a year with varying mileage: Performance was still acceptable at the normal 10,000 km oil change interval, but engine vibration noticeably increased by 11,000 km. If driving gently under good road conditions, extending to 10,500 km proved feasible. I make it a habit to check the dipstick every three months - if the oil appears thin and blackened, I change it immediately without pushing limits. This flexible approach saves money while protecting the vehicle.


