An Italian tuneup usually refers to the process by which a motor vehicle engine is run at full load for a long time to burn carbon accumulation from the combustion chamber, spark plugs, and exhaust system. This is done after a traditional tuneup and is often accompanied by the addition of a cleaner fuel system to the fuel tank. This can also be done before each oil change interval with the addition of a good quality fuel system cleaner, then some redline runs under load, once the engine reaches the operating temperature. Most of the carbon will come out through the exhaust but the footprint will find their way into the oil pan, so do it before the oil changes. This is particularly useful for vehicles that only operate at low speeds on short trips, but can help vehicles to run clean for longer, and for diesel vehicles before emissions testing. Driving for 20 km (12 miles) is typical.
Video Italian tuneup
History
The origin of the Italian tuneup comes from Ferrari. Owners will drive their car rarely and never run it out loud, which causes the engine to build enough carbon inside to affect performance. The mechanic will perform a "tuneup" by riding a few laps around the race track to get a machine hot enough to burn the built-up carbon. Cars prior to the emergence of lubricants and modern engine fuel, often have a 'de-coke' by hand, after removing the cylinder head, as a scheduled service operation.
Maps Italian tuneup
References
Source of the article : Wikipedia
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