
Chevrolet Trax uses 5W30 engine oil. The functions of engine oil are: 1. To separate the relatively sliding parts' surfaces, thereby reducing wear; 2. To bring heat back to the oil tank and then dissipate it into the air, helping the radiator to cool the engine; 3. To circulate carbon deposits, sludge, and worn metal particles from engine parts back to the oil tank, flushing away dirt generated on the working surfaces of the parts through the flow of the lubricating oil. Taking the 2021 Chevrolet Trax as an example, its body structure is a five-door, five-seat SUV. The body dimensions are: length 4270mm, width 1791mm, height 1618mm, wheelbase 2570mm, front track 1547mm, rear track 1551mm, fuel tank capacity 40L, trunk capacity 390L, and curb weight 1230kg.

I've specialized in researching the oil selection for the Chevrolet Trax. According to the manual, the factory requires dexos1-certified 5W-30 oil. This viscosity is ideal for the lubrication needs of the 1.0T or 1.3T engine, ensuring quick cold starts and fuel efficiency. I've been using Mobil 1 full synthetic 5W-30 in my Trax, and the engine noise is noticeably quieter during highway driving. I recommend changing the oil every 8,000 kilometers, and switching to 0W-20 in northern winters for easier starts. The 4S shops use SAIC-GM's factory oil, but dexos-certified options like Shell Helix Ultra or Castrol Edge are also perfectly fine. Just remember, never use mineral oil—turbocharged engines can't handle that cheap stuff.

After nearly six years with two Trailblazers in our family, I've mastered oil changes. Both new and old engines work best with 5W-30 full synthetic oil - my 2019 three-cylinder runs smoothest with Mobil 1. The older naturally aspirated engine can occasionally use semi-synthetic, but turbos require full synthetic. The key is checking for the dexos1 certification on the oil cap - this ensures proper cleaning performance. When winter temperatures drop below -15°C, I switch to 0W oil for easier cold starts. A 4-liter bottle is just right for one change, and always replace the oil filter simultaneously.

With over a decade of auto repair experience, I've seen countless cases of wrong engine oil usage. For the Chevy Trax, sticking with 5W-30 is the safest bet. Pay special attention to the dexos1 certification mark on the oil container - lacking this may trigger the engine warning light. New China VI models work best with SP-grade full synthetic, while SN-grade is acceptable for older vehicles. In hot climates, 30 viscosity provides better high-temperature protection, while 0W rating is preferable in frigid zones. Oil change intervals depend on oil type: mineral oil won't last beyond 5,000 km, whereas full synthetic can go the full 10,000 km. For DIY oil changes, remember to add approximately 3.7 liters - overfilling will exceed the dipstick's upper limit.


