Gasoline Direct Injection (GDI) has been celebrated as a grand achievement by automakers. It’s the latest fuel delivery technology and industry titans tout its better performance and better fuel economy. It’s not just all industry hype either. GDI engines have produced some impressive results.
GDI stands for Gasoline Direct Injection, and the T denotes Turbo. In terms of Proton’s engine development, this means a move away from multi-point injection (MPI) where the injectors shoot fuel into the inlet tract to the more efficient GDI, with injectors firing directly into combustion chamber.
How does Hyundai GDI work?
Do GDI engines use more fuel?
GDI engines consistently reduce the amount of fuel that is trapped around the piston’s circumference, which means that – especially at part throttle – that this improved combustion efficiency allows the engine to run at much leaner air-fuel mixtures which improves fuel efficiency.
While GDi vehicles will require a service, typically between 20 to 40,000 miles, regular maintenance in between will help prevent the accumulation of carbon: Change oil according to the manufacturer’s recommended change intervals and using the specified oil for optimal performance of the intake valves.
How do I keep my GDI engine clean?
What are the disadvantages of GDI?
Disadvantages: Dramatic efficiency losses due to deposits on the piston surface. More deposits on the intake ports and valves. Low mileage misfire codes.
What are the advantages of a GDI engine?
With a GDI gasoline (petrol) engine, fuel is injected directly into the combustion chamber, not the intake port. The benefit of this system of fuel injection technology is that fuel is used more efficiently. Without the need to pump fuel into the intake port, mechanical and pumping losses are reduced significantly.
Why do GDI engines burn oil?
The short answer is that when they’re clean, GDI engines don’t burn any more oil than any other engines do. But when those deposits slough or flake off, they can become lodged in the piston ring area, which does directly increase oil-burning.
What are the disadvantages of direct injection?
Just as plaque can build up in your arteries, reduce blood flow to your heart and lead to a heart attack, carbon buildup on your car’s intake valves reduces fuel flow to the engine and can lead to failure. The biggest drawback of direct fuel injection is DI can lead to clogged fuel systems and engine carbon fill up.
Other manufacturers offering or planning to offer GDI engines include Audi, BMW, Hyundai, Kia, Mazda, Mercedes-Benz, Nissan, Lexus, Saab, Subaru and Volkswagen. The big unknown is whether gasoline direct injection will get leapfrogged by more advanced technologies.
How long do direct injection fuel injectors last?
With good, quality fuel injectors, you can expect them to last a long time. So, how long do fuel injectors last exactly? Some can be expected to last between 80,000 and 100,000 miles, while the best fuel injectors can last as long as you have your vehicle.
How do you clean a direct injection engine?
Spray CRC GDI IVD® Intake Valve & Turbo Cleaner directly into the throttle body in short bursts. Once the can is empty, rev the engine from idle to about 3,000 RPM (do not exceed 3,500!). Let the engine idle for 1 minute, and then the turn it off. Reinstall the air intake system.
Do all GDI engines need cleaning?
In GDI engines, there is no fuel wash effect, so the valve surfaces tend to build up carbon rather quickly. Consequently, at some point, all GDI engines will need to have their intake valves cleaned. In fact, many experts recommend cleaning the intake system before every single oil change.
Does fuel injector cleaner work on GDI engines?
Does fuel system cleaner work on direct injection?
Product Description. STP Direct Injection Fuel Injector Cleaner is a PEA-based high performance formula scientifically engineered to dissolve hardened deposits that accumulate on injectors in vehicles with Direct Injection systems. Without cleaning, deposits can lead to hard starts, lost acceleration and rough idling.
What is the best fuel system cleaner for GDI engines?
Editor’s Pick: Chevron Techron Concentrate Plus Fuel System Cleaner.
Red Line Complete SI-1 Fuel System Cleaner (60103)
Royal Purple Max-Clean Fuel System Cleaner and Stabilizer (11722)
Liqui Moly Jectron Fuel Injection Cleaner.
Sea Foam Motor Treatment (SF-16)
Lucas Oil Deep Clean Fuel System Cleaner (10512)
How long does it take for fuel injector cleaner to work?
Although fuel injector cleaner starts working as soon as you put it into your vehicle’s tank, it takes time for the effects to become noticeable. You should begin seeing results within 100 – 300 miles after you use fuel injector cleaner.
Is fuel system cleaning worth it?
A clean fuel system can improve the longevity of your vehicle, increase power and performance, improve fuel economy and drive ability. Many of us tend to neglect cleaning our vehicle’s fuel system, not realizing that this is actually a vital component to prolong the life of your car.
Is it OK to use fuel injector cleaner every time I fill up?
Depending on the product you want to use, you can use a cleaner as much as every gas fill-up or as little as every year. In order to easily remember when to use a fuel injector, consider using one every time you get an oil change.
William Getty lives and breathes cars. He started driving cars as a 12 year old on the racetrack with his dad. Since then cars has always been a big part of Williams life.
In his garage you can find his beloved 2005 Ford Mustang, as well as a 2020 Audi A3.
