How do you keep the intake valves clean on a direct injection engine?

Use an aerosol product that can loosen and remove carbon such as brake cleaner (CRC Green works well), Sea Foam or Intake Manifold Cleaner on the intake valves. Spray the cleaner directly into the intake port so that it puddles on top of the valve. Let it soak for about 30 minutes to loosen the deposits.

Is direct injection better than fuel injection?

Direct injection technology provides slightly more power and better fuel economy; depending on the application, it’s usually in the 10–15 per cent range of improvement. But engine torque delivery can be bumped by as much as 50 per cent.

Does fuel injector cleaner work on direct injection engines?

STP Direct Injection Fuel Injector Cleaner is safe to use in any engine and is compatible with cap-less gas systems.

Why is the intake valve cleaner in a direct injection engine?

This leads to uneven idle, poor acceleration, and lowered fuel economy. Direct-injected engines have an even higher rate of intake valve carbon buildup due to the fact that fuel never washes over the back of the valve to help clean the deposits. Carbon builds up much faster on GDI (Gasoline Direct Injection) engines.

How does gasoline keep fuel injection systems clean?

While gasoline can keep fuel injection systems clean, there is not much it can do about carbon buildup. The gas never touches the intake valves because it gets injected into the combustion chamber downstream of the intake valve.

What is direct fuel injector cleaner and why do you need?

Without proper maintenance, your Gasoline Direct Injection (GDI) engine can have performance loss, efficiency drops and increased emissions in as early as 3,000 miles/5,000 km. What is Direct Fuel Injector Cleaner and Why Do You Need It? As your vehicle (gasoline or diesel) is driven, byproducts are produced.

How often should I Clean my intake valve?

Direct Injection is here to stay and carbon buildup on the valves is always going to be an issue especially with the oil vapors from the engine being routed through the intake system. As long as these cleanings are done roughly every 25k miles you will never have a problem. Any thoughts on this? Click to expand…