How to choose car engine oil suitable for hot and humid climate in Vietnam

1. Why does climate affect engine oil?

Vietnam has a tropical monsoon climate, hot and humid all year round, especially in summer the temperature can reach 40°C. 

Under these conditions, engine oil operating in high temperature and high humidity environments is susceptible to damage rapid oxidation, reducing lubrication efficiency and engine protection.

-Garages need to understand clearly to advise customers on the right products and protect service reputation.

2. Criteria to consider when choosing engine oil for hot and humid weather

a. Suitable viscosity index (SAE)

In hot climates, you should choose oil with a higher viscosity index, such as SAE 10W-40, 15W-40 or 5W-30 depending on the vehicle model and manufacturer's instructions.

-Oil that is too thin can lose lubrication at high temperatures, causing engine wear.
 

b. Antioxidant ability

-Engine oil is easily oxidized in hot and humid conditions. Choose the type of oil available Strong antioxidant additive will help prolong oil life, protecting the engine longer.

c. API/ACEA index

-Make sure the oil meets standards API SN, SP or higher, compatible with modern engines.

-Garages should check carefully before importing goods to ensure quality and reliability.
 

3. Full synthetic or semi-synthetic oil – which one should you choose?

Full synthetic oil (Full Synthetic) has good thermal stability, less volatility, and is more durable in hot conditions. Suitable for new cars, service vehicles, and continuously operated vehicles.

Semi-synthetic oil Suitable for common cars, more reasonable cost but still capable of protecting the engine if replaced periodically.
 

4. Suggested Gartz engine oil lines suitable for Vietnam's climate

Gartz Full Synthetic 5W-30 / 10W-40

-Full synthetic oil, API SP standard

-Excellent protection in hot weather, anti-sludge, fuel saving

Gartz Full Synthetic 15W-40

- Fully synthetic oil, good thermal stability
-Suitable for garages serving popular and high-traffic vehicles

 Gartz Full Synthetic15W-40

-For light trucks and diesel passenger cars

-Helps clean the engine and prevent wear in harsh operating conditions
 

5. Advice for Garages and car users

-For Garage: You should stock many different viscosity levels to flexibly give the right advice for each type of vehicle and each region.

-For users: Don't choose oil based on price alone, give priority suitable for operating conditions and the climate where you live.