Search results
Results from the WOW.Com Content Network
In non-GDI engines, the gasoline traveling through the intake port acts as a cleaning agent for contamination, such as atomized oil. The lack of a cleaning action can cause increased carbon deposits in GDI engines. Third party manufacturers sell oil catch tanks which are supposed to prevent or reduce those carbon deposits.
However, carbon build-up on intake valves is a problem for engines with direct injection only, as the fuel is injected directly into the combustion chamber. Because of this, fuel system cleaners or fuel additives added to the tank will not help clean these deposits.
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]
For premium support please call: 800-290-4726 more ways to reach us
Cars with gasoline direct injection (GDI) have been especially prone to carbon buildup, and car makers recommend fuels with higher detergent levels to combat the problem. [18] At first GDI was mainly available in high-end autos, but it is now being used in mid-range cars and economy cars, such as the Hyundai Sonata, Ford Focus and Hyundai Accent.
In a naturally aspirated (i.e. nonturbocharged) engine, such a reduction in throttling also reduces the problem of engine oil being sucked past the piston rings into the cylinder and causing oil-derived carbon deposits there. (This benefit only applies to nonturbocharged engines.)
The port fuel injection also aids in reducing the potential carbon deposits that can occur in direct-injected engines. As of 2024, the 'dual injection' system has not been offered in North American markets.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!