Is 0w20 engine oil mandatory for the new Passat?
2 Answers
The new Passat does not necessarily require 0w20 engine oil. The functions of engine oil are: 1. Reduce friction and damage between moving parts; 2. Absorb heat generated in the engine combustion chamber and piston top, cooling the engine and protecting it from overheating; 3. Prevent pollutants and oxide impurities produced during combustion from adhering to the engine interior, keeping it clean; 4. Neutralize acidic substances generated by combustion gases, preventing engine rust and corrosion. The method for changing engine oil is: 1. Lift the vehicle with a jack; 2. Drain the old engine oil; 3. Remove the oil filter; 4. Install a new oil filter and refill with new engine oil.
I've researched Volkswagen models, and the new Passat does recommend using 0W-20 oil, but it's not an absolute must. Volkswagen manuals typically specify 0W-20 because it meets the VW 50800 standard, which is optimized for turbocharged engines. 0W-20 oil has better fluidity, provides stronger cold-start protection, and can also improve fuel efficiency—my experience shows it can save a few percentage points in fuel consumption. If you're in extreme climates or frequently drive at high speeds, the manual occasionally allows for 5W-30, but it's best not to switch arbitrarily, as it may affect engine warranty or increase wear risks. Regular oil level checks are crucial, and I recommend changing it every 8,000 kilometers for better engine longevity. Choose reputable brands like Castrol or Mobil for 0W-20 oil to ensure it suits your car's condition.
