For normal driving situations, you can use oil with a viscosity of SAE 5W-40 for gasoline engines in all temperature ranges. If the viscosity grade is not readily accessible, you can use 5W-30 or another grade as long as it satisfies the appropriate Audi oil-quality requirement. Use SAE 5W-30 for diesel engines.
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What type of engine oil do I need for a diesel Audi A3?
Audi has approved Mobil 1TM ESP 5W-30, a fully synthetic low ash oil, for use in both diesel and gasoline vehicles that must adhere to the Audi VW 504 00 oil standard.
Can 5W-30 be used in place of 5W40?
Using 5w30 oil:
For 5w40 oil:
This essentially indicates that each oil is equally viscous at lower temperatures and will remain so at a temperature of 30C, but that 5w40 oil operates better at higher temperatures than 5w30 oil, being effective up to ambient temperatures of 50C as opposed to 30C.
In comparison to, say, 10w40 oils, 5w40 and 5w30 motor oils have winter viscosity grades of five, making them effective down to temperatures of -30C and more viscous at extremely low temperatures.
As a result, 5w40 oils are probably utilized in higher-performance engines that operate at higher temperatures and loads than usual, such as those used in vehicles driven in metropolitan environments, which frequently sit in traffic, or in vehicles traveling at very high speeds, for example.
5w30 oils are a fantastic option if your vehicle is not made to be driven at a high rate of speed or if you drive more cautiously and sustainably. These typically perform better for certain engine parts like oil pumps, can clean the engine better, and have longer lives because they operate at lower temperatures.
Low-Shear-Rate Viscosity for 5w30 and 5w40
At 100g, the viscosity of 40 ranges from 12.5 to 16.3 mm2/s. At 100g, the operating viscosity of 30 ranges from 9.3 to 12.5 mm2/s. Both oils are 5 grade while they are cold, however at operating temperatures, 5w30 becomes 30 grade and 5w40 becomes 40 grade. With greater temperatures in the summer, 5w40 has a higher viscosity than 5w30, which aids in the motor’s continual operation.
High-Shear Rate Viscosity
This value is a minimum of 3.5 at 150g for a working viscosity of 40. The value of this parameter at 150g must be at least 2.9 for a working viscosity of 30. This indicator largely reveals how much the oil can withstand under harsh loads.
Application
Although it may be utilized by various types of cars and in a variety of temperatures, 5w30 is best in colder climates. Higher mileage engines frequently employ 5w40, which operates better in warmer climates.
Which oil does Audi suggest?
Audi recommends using Castrol EDGE Professional LongLife III 5W-30 engine oil for your Audi vehicle since the two companies regularly collaborate to produce engine oils to improve performance and save fuel consumption.
CASTROL EDGE 5W-30 LL
An innovative complete synthetic engine oil, Castrol EDGE 5W-30 LL with Fluid Titanium is suited for use in a variety of cars, including those equipped with Diesel Particulate Filters (DPF). giving you the self-assurance to expect the highest engine performance from the most advanced technology now available, highly built engines that run with tighter tolerances and need a high level of protection and low viscosity oils.