In my A4 2.0T I use 4qts of Liqui Moly 5w40 and 1qt of Lucas Heavy Duty Oil Treatment.
Vehicle:
Audi A4
Best Engine oil for Audi A4
I used to have a B8 and kept my oil level OK as per the MMI and only used Liqui Moly oil.
Pros: Kept oil level OK
Vehicle:
Audi A4
If in Europe use Aral Hightronic 5W40. This was the best oil for my A4 130PD TDI.
Pros: best oil
Vehicle:
Audi A4
Liqui Moly is the only oil I use. 198,000 miles and still purrs like a kitten.
Pros: purrs like a kitten
Vehicle:
Audi A4
Mileage: 198000 km
Just buy liquimolly. Best oils I’ve ever put in my cars.
Pros: best oils ever
Vehicle:
Audi A4
I run Leichtlauf 5W-40 on my B7 A4 2.0T; just hit \~250K km. Used to run Castrol and Motul but as I started doing my own oil changes, switched to the LiquiMoly stuff. Oil consumption issues gone, no complaints from me.
Pros: oil consumption issues gone
Cons: no complaints
Vehicle:
Audi A4
Mileage: 250000 km
I always use Castrol, good quality oil won't hurt the engine and is just slightly more expensive than off-brands.
Pros: good quality oil
Cons: slightly more expensive
Vehicle:
Audi A4
Over here in Germany changing your oil every 3k miles in a normal A4 absolutely tanks your resale value. The only reason to do this frequent oil changes is to hide problems. Personally my car did 30 000km(~20k miles) until 91 000km and then every 15 000km(~10k miles). It's a diesel and almost all longish distance highway trips.
Pros: long intervals, good for diesel
Cons: low resale value
Vehicle:
Audi A4
Mileage: 30000 km
I always use liqui-moly leichtlauf 5w40.
Vehicle:
Audi A4
The 2.0 liter gas/petrol engine is the weak link here, due mainly to poor piston ring design. We are third owners of a '14 A4 6MT, purchased in mid '17 with 48K miles. We're at 98K miles now, and with 5K engine oil changes using Liqui Moly or Elf/Total fully synthetic, we use a small nominal amount of engine oil between changes.
Pros: small nominal oil usage
Cons: poor piston ring design
Vehicle:
Audi A4
Mileage: 98000 km
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