How do I properly maintain my Audi 80's engine performance?

I have noticed a decrease in my Audi 80's acceleration and overall engine performance. What are some steps I can take to maintain the engine's performance and improve my car's overall driveability?

Regularly changing your engine oil and oil filter is crucial for maintaining its performance. Make sure to use high quality, manufacturer recommended oil for best results.

Check and replace your air filter as needed. A clogged air filter can decrease engine performance and affect fuel efficiency.

Inspect and replace spark plugs and wires if necessary. These parts are crucial for the combustion process and can greatly impact engine performance if not functioning properly.