What Type of Engine Oil is Suitable for Summer?

[Cecilia]

In summer, it is recommended to use engine oil with viscosity grades such as 10W40 or 10W30. Under the condition of ensuring lubrication, you can choose engine oil with lower viscosity based on the temperature range during use, engine temperature, and actual vehicle condition. For engines in good condition with minimal wear, you may opt for lower viscosity oils like 5W30 or 10W30. For engines with severe wear and larger clearances, it is advisable to use higher viscosity oil such as 10W40. Key considerations when adding engine oil include: 1. Always select the oil grade specified in the vehicle's user manual; 2. Determine the appropriate oil based on the vehicle's age, engine condition, and regional climate; 3. The amount of oil added should be slightly below the standard mark.

[OJulia]

Driving in summer heat causes the engine temperature to rise quickly, so it's crucial to choose the right oil grade to prevent thinning and insufficient lubrication. Based on my experience, the most commonly used grades are SAE 5W-30 or 10W-40. The former is suitable for all seasons including summer, while the latter provides better engine protection in high-temperature regions to avoid overheating and wear. Avoid using overly thin oils like 5W-20 as they accelerate engine wear in summer. Regularly check the oil level—inspect every 1,000 km and replace it promptly. It's recommended to change the oil every 5,000 km or every six months to ensure stable oil film performance. Opt for full synthetic oil for better durability, fuel efficiency, and environmental friendliness. If you drive an SUV or frequently take long trips, consider increasing the viscosity to 10W-40. Always refer to the manual—never arbitrarily change the oil grade, whether for new or old cars—safety comes first. Bonus tip: Pair oil changes with a quality oil filter to extend engine life, save money, and drive farther with peace of mind.

[OLena]

I've been studying engine oil for years. When choosing oil for summer, look at the number after the 'W' in the SAE standard - the higher the high-temperature viscosity, the better, such as 30 or 40. In hot weather, engine oil tends to oxidize and thin out. 5W-30 is reliable for all-season use, while in hotter areas, 10W-40 provides enhanced protection. I recommend selecting API SP-grade premium oil for better high-temperature resistance and corrosion prevention, which reduces startup wear during frequent driving. Shorten the oil change interval in summer - check oil quality every 6,000 km to avoid aged oil clogging the engine. Vehicle type also matters: new cars often use 5W-30, while older vehicles benefit from slightly thicker oil to extend engine life. Maintain steady driving habits (avoid aggressive driving) to make oil last longer, and keep the filter clean to prevent contaminants from entering.

[MacBrady]

In summer, I usually use the universal SAE 5W-30 oil grade, which suits most vehicles and performs well even in high temperatures. Don't hesitate to check your manual to ensure compatibility. Monitor the dipstick regularly while driving - if the oil appears thin and black, replace it promptly to maintain cleanliness. Follow the standard replacement interval of every 5,000 kilometers for cost-effective and convenient maintenance. Opt for reputable brands to avoid substandard products, ensuring engine protection and worry-free driving.