Why is 40-weight oil recommended for the Audi A3?
2 Answers
Audi A3 uses 40-weight oil. The difference between 30 and 40-weight oils is that the 40-weight oil has higher viscosity, providing better high-temperature protection and sealing performance. Although it may increase fuel consumption, considering the characteristics of the Audi A3 model, 40-weight oil is more suitable. Below is some relevant information about the Audi A3: 1. Power: In terms of power, both the sedan and hatchback versions of the A3 are equipped with 1.4TFSI and 1.8TFSI engines. 2. Interior: The Audi A3's configuration is slightly inferior to joint-venture cars in the same price range. It features a parking assist system and a panoramic sunroof but lacks navigation, DVD, and a rearview camera. The interior craftsmanship is meticulous, simple, and has a good texture. The seats offer moderate support and firmness, providing a comfortable ride. 3. Exterior: While the Audi A3's exterior may not be considered particularly beautiful, it has its own style. The compact and sporty appearance is strong, but it lacks some fashionable elements. However, some users have noted that the exterior detailing could be more refined.
I've been using an Audi A3 for four years and found it particularly picky about engine oil. The car's engine runs hot, especially the turbocharger which works like a little furnace. 40-viscosity oil can maintain its protective properties under high temperatures, and the oil film won't break easily. I tried 30-viscosity oil before, but it burned nearly a liter after just 5,000 kilometers. After switching to 40-viscosity, things stabilized. German engines have slightly larger piston clearances, and 40-viscosity oil perfectly fills these gaps, preventing oil from entering the combustion chamber. The manufacturer's recommended viscosity is based on tens of thousands of tests. I suggest not arbitrarily switching to lower viscosity oils—the small savings on oil costs won't even cover a fraction of future engine repairs.
