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Italian tuneup is a slang automotive term for attempting to restore engine performance by driving a car at high engine speed (rpm) and load.
The term originated from Italian mechanics in the 1950s using this practice to burn off carbon deposits from the spark plugs of sports cars.[1][2] However, modern direct injection and port injected engines and electronic ignition systems have rendered Italian tuneups obsolete for that particular purpose.[1]
The practice is sometimes used prior to emissions testing, particularly for diesel engines.[3]
- ^ a b "High Rev Engine Cleaning". Popular Mechanics: 92. Feb 1993. Retrieved 2024-08-27 – via Google Books.
- ^ Hartman, Jeff (2009). Nitrous Oxide Performance Handbook. MotorBooks International. p. 138. ISBN 9781616730529. Retrieved 2024-08-27 – via Google Books.
- ^ Lane, Keith (2011). Automotive A-Z - Lane's Complete Dictionary of Automotive Terms. Veloce. ISBN 9781845844196. Retrieved 2024-08-27 – via Google Books.[page needed]