Gasoline Direct Injection (GDi) Systems

Demand for gasoline direct injection (GDi) technology is increasing - several research firms project the global GDi market will grow in excess of 10 percent annually through 2026. And when paired with electrification technologies, growth is forecast well into the next decade. As a leading OE manufacturer, Delphi is perfectly positioned to help you take advantage of this exciting opportunity. In addition to the latest generation OE technology, our GDi service program includes the OE parts, tools and know-how to service this fast-growing, high-performance technology.

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Raising the bar with OE technology

Our industry-first Multec® 14 (M14) 350-bar pressure injection system raises the bar, taking injection pressure from 200 to 350 bar. By injecting smaller droplets into the combustion chamber faster, the latest generation system delivers fewer hydrocarbons and particulate emissions – up to 70 percent - and increased fuel savings. And if that’s not enough, we’re already working on a 500 bar solution.

OE expertise in the aftermarket

We bring our OE expertise to the aftermarket too. Our GDi service programme features our award winning Multec® GDi multi-hole fuel injectors for optimised fuel delivery and combustion, low noise GDi high pressure fuel pumps and service kits, giving you access to OE parts for a high-quality, competitive service. Understand more about the common service issues with GDi.

More than parts

We also offer a comprehensive electronic and hydraulic diagnostic solution including our proven on-board DS diagnostic tool, a high-pressure diagnostic kit, HD3000, allowing technicians to safely set and electronically control any pressure test point up to 3000 bar and a wide-ranging low-pressure tester, LP35.

Training from the OE experts

Want to learn more about GDi servicing? Our range of one day specialist training courses combines theory with practical, on-vehicle exercises and cover key topics such as component operation, common systems and faults, using high pressure gasoline and more. Giving you the skills and know-how to service the latest GDi equipped vehicles.

The Delphi Difference

100 years of OE experience, supplier to the world’s top automakers
OE heritage and knowledge built into every aftermarket part
Comprehensive portfolio for a wide range of vehicles and model years
Streamlined SKUs for easy inventory management
Support through tools, tips and training

Related product resources and downloads

1 min read

How to test the alcohol content of gasoline

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Fuel Management Fuel Systems Gasoline Fuel Systems Guides & Tips How to Video DIYers Technicians 1 min read

Resource Highlights

In this article you will find out about how to test the alcohol content of gasoline. This can help you test whether your customer has been improperly using E85, or ethanol, in a vehicle not designed to run on alcohol-based fuels.

Here’s a safe, fast and easy way to check the alcohol content of gasoline using a graduated cylinder.

This can help you test whether your customer has been improperly using E85, or ethanol, in a vehicle not designed to run on alcohol-based fuels.

Safety First

Always put safety first. Be sure you are wearing safety glasses and gloves. Give yourself room to perform the test and have cleanup materials ready in case you spill any gas. And don’t smoke, don’t do the test near an open flame or anything else that may cause a spark. It’s a good idea to have a fire extinguisher on hand.

Graduated Cylinder

You’ll need a graduated cylinder — we suggest 50 milliliters, but you can use a larger one, too. You’ll also need a small amount of gas and water.

Pour Gas into the Cylinder

Pour 10 milliliters of gas into the cylinder. Then pour in two milliliters of water.  Cover the cylinder and shake it for about one minute. Then let it stand for up to 15 minutes.

Leave for 15 Minutes

After about 15 minutes, you’ll see that the water sinks to the bottom. Take a reading where the water and alcohol separate. If there is no alcohol in the gasoline, you’ll see the separation at the two milliliter mark, which is the amount of water that you started with. If the separation line is above the two milliliter mark, you have alcohol in the gasoline.

Figure Out Alcohol Content

So let’s figure out how much alcohol — or the percentage. Just take the number of milliliters at the separation line and subtract two milliliters — which was the amount of water we added. Take the number you get and multiply it by 10, and that is the percentage of alcohol in the gasoline. If you find that the alcohol content of your customer’s gasoline is high, that may be a sign that your customer has been using ethanol.

Watch this video below for more information.