GDI Service
When? Varies depending on products and systems used
What? Gas Direct Injection (GDI) was designed to increase performance and fuel efficiency.
Why? Traditional multiport fuel injection systems mixed air with fuel in the intake system, operating in a cooler environment, which helped keep carbon buildup low. In contrast, GDI injects fuel directly into the cylinder at high pressure in an extremely hot environment. This can create problems and requires maintenance. Additionally, GDI does not have fuel flowing over the back of the valves, allowing carbon to build up, sometimes in less than 30,000 miles.
When? There are various services to address the issues associated with GDI. Carbon cleaning involves using chemicals or blast materials to remove carbon buildup. Chemical treatments need to be used more frequently to maintain a clean engine, but their effectiveness varies as they are relatively new. Shell blasting does a great job cleaning the carbon but is labor intensive and shouldn’t be performed until buildup requires it. Fuel cleaners help maintain clean injectors. We use a heavy-duty cleaner that includes a lubricant to keep injectors clean and functioning every 10,000 miles.
