Does Audi's Four-Wheel Drive Need Differential Oil Change?
1 Answers
Yes, it needs to be replaced. Differential oil is essentially the same as the gear oil used in manual transmissions, both requiring periodic replacement, though the intervals vary depending on the type of gear oil used. Gear oil replacement intervals: If mineral oil is used, it should be replaced every 2 years or 40,000 kilometers. Synthetic gear oil can last 150,000 to 200,000 kilometers before needing replacement. Gear oil for differentials: Standard open differentials use 75w-90 gear oil, while differentials with LSD (Limited Slip Differential) functionality require 75w-140 gear oil.