
The 8th generation Accord is suitable for Mobil 1 SM 0W/40 synthetic engine oil. Below are the relevant details: 1. The meaning of "0W" The "0W" at the front indicates that the lower the number, the better the low-temperature fluidity of the engine oil, representing a lower usable environmental temperature and better engine protection during cold starts. For example, 5W corresponds to a minimum temperature of -30°C, 0W is -35°C, and 10W is -25°C. 2. The meaning of the numbers The number at the back represents the viscosity index of the engine oil at high temperatures. The higher the number, the higher the viscosity. Higher viscosity provides better engine protection but results in higher fuel consumption, and vice versa. Each vehicle has different viscosity requirements. For instance, Japanese cars typically use 30, while German cars mostly use 40, as it meets Volkswagen's certification standards.

My eighth-gen Accord has done 120,000 km and always used 5W-30 full synthetic oil. The manual strongly recommends this viscosity - never randomly change it. Last time I tried 0W-40 and it actually increased oil consumption. For the 2.4L engine, basic versions from major brands like Shell Helix or Mobil are perfectly adequate, with 8,000 km change intervals being ideal. Always check fluid levels before summer road trips - older Hondas are prone to oil seepage. Repair shops always push premium oils, but regular changes matter far more than brand selection. During oil changes, have them inspect the valve cover gasket as this generation's rubber deteriorates quickly. Cabin air filters should be replaced twice annually, especially in humid southern regions where dust accumulation is severe.

Owners who have modified their engines should pay attention to the high-temperature protection of engine oil. I've had my ECU tuned and exhaust replaced, and I've been using Mobil 1 EP 0W-30 long-term. This PAO-based oil has strong shear resistance, maintaining stable oil pressure around 4.2 bar at high RPM. Don't skimp by using mineral oil—carbon deposits can increase by 30%. Always use OEM oil filters; I've had two aftermarket filter failures. Now, during every maintenance, I ask the mechanic to check the VTC actuator—a common issue with 8th-gen models causing cold-start rattling when it fails. Don't exceed 9,000 km between oil changes; my tests showed excessive aluminum particles in used oil beyond that.

Choosing oil for the 8th-gen Accord depends on the year. For 2008-2010 models, 5W-30 full synthetic is recommended, while post-2011 models run better on 0W-20 for improved fuel economy. In northern winters, pay attention to the number before W - here in Harbin, I use 0W-30 for smoother cold starts. Avoid off-brand oils - a friend's engine got sludge-clogged oil passages after just three months using online-purchased oil. Be vigilant with free maintenance from repair shops, as they often substitute lower-grade oil. The 2.0L engine takes exactly 4.3L - don't overfill, keep it at the dipstick's midpoint. Replace the PCV valve after 100,000km - a clogged one causes oil burning. Always use genuine filters - Mann's 610/6 has proven the best fit in real-world tests.


