While having a discussion, Technician A says that GDI has the ability to run the engine with a variable air-fuel mixture that can be extremely lean with an overall average ratio of around 40:1. Technician B says that this can increase fuel economy by as much as 30%. Who is correct?

Question

Quizplus · Accepted Answer

Both technicians are correct. GDI (Gasoline Direct Injection) allows for a variable air-fuel mixture that can be extremely lean, resulting in an overall average ratio of around 40:1. This lean mixture can increase fuel economy by as much as 30%.

While Having a Discussion, Technician a Says That GDI Has