Engine oil ELF or OEM Audi
I’ve done both and extractor takes out like 97% of oil. I still had about a half cup when I pulled the plug.
Audi TTS from 2016 and depending on wether im driving comfortable to work in winter it can be 95-98c, pushing it hard in summer it goes up to 107-108c at times.
My S3 seems to be at 222F all summer when commuting, I think it gets near 240F after a good autocross run
I've been putting 10w-40 ELF 70 STI regular oil in my 1.6 petrol from '98 for 3 years now with no issues.
I don’t drive my car enough to hit any of the reasonable mileage points. I change my oil yearly, roughly around the time it gets inspected. Might be overkill (last year the car moved 2k miles, the year before was 2.4k), but I figure the $80-85 I pay is worth it. My wife’s Q7 will be getting its oil changed every 5k miles. It’s a 3.0T supercharged and they love to eat oil, I’d probably add half the oil back just to make it to 10k.
I do every 5k (2013 S4)
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.
I do this on my Q5, I started using like half a quart of cheap new sacrificial oil to mix up the bottom of the pan and extract as much black oil as possible. I almost had an issue with the extractor tube getting stuck in the engine l, but I was able to get it out with a bit of force
I had the same issue on my 2019 A6 3.0 last year. Two times I had to pop into the dealership to have oil removed (no charge) and the issue was due to dilution and short trips.
2015 Audi A3, new to me a year ago. One quart every 400 miles. First car I've ever owned that consumed this much oil. It's a nightmare!
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