Drive cleaner en cheaper

With your app and logo always in sight

When you’re driving towards a traffic light or roundabout, let your car roll out sooner. This reduces the CO2 emission of your car and saves fuel costs. The app shows how much. All your relations download the free Petrollo app, enter your code and see your logo while they drive. A green business gift!


The way it works


Upload logo

Do not you have your logo? Go to Google – type Logo and your company name – click on Images. You see your logo. With a right mouse click you go to ‘Save image as “. Then place your logo on your desktop. From there you can upload it to the Petrollo phone screen. If it does not work, send us an email and we will help you.



If your logo is on the screen, go to Pay. Choose the payment method and pay. You will automatically receive the code to your email address. With this code you can open your version of the Petrollo app.


Download the app

Once you have received your code, go to Google Play or the App Store and download the Petrollo app. Than you enter your code and you’ll see your logo in the screen of your smartphone. You can also send this code to others so they also can download the Petrollo app with your code and your logo.

The app in practice!

The video shows how easy the Petrollo app works. The app is limited to 70 km / hour. This is because there are many stopping points in the city area so you can roll out and save much more often there. You will quickly earn back your € 39!

More info

Rolling out

When you approach a traffic light or a roundabout, you let your car roll out in neutral gear. The speed decreases very slowly so you do not hinder the traffic behind you. You drive but you use less gas. That lowers the CO2 emissions of your car and saves fuel. All systems continue to function during rolling out: the brakes, the power steering etc.

Sustainable promogift

You can also send your specific code to your customers, staff, family and friends. As much as you want. They download the free Petrollo app in Google Play or the App Store and enter your code. Your logo stays in sight while they drive. A sustainable promotional gift!

The app indicates

The app registers the distance your car rolls out and calculates the reduced CO2 emissions and the saved fuel costs on the basis of our patented algorithm. The app should be used as an indicator and motivator. Not as a measuring instrument. The goal is to raise awareness about CO2 emissions.


It is best to place your smartphone in a holder on the front window or dashboard of your car. During driving and rolling out, the Petrollo screen must remain in sight. The app does not register anything if the logo is not in the picture. A good reason not to use social media in the car.

Frequently Asked Questions

What is rolling out by car?

Roll-out is an effective way to limit CO2 emissions from cars. When you see that you have to stop or drive more slowly, you switch to neutral gear. You drive but the engine uses much less fuel than normal. The result is that the engine therefore emits much less CO2. A saving of 20 to 30% is possible! An additional advantage is the reduced fuel consumption. That saves money!

What is the principle of rolling out based on?

When rolling out in neutral gear, the car uses kinetic energy. Kinetic energy is a form of energy that an object has in itself because it moves. The mass and speed of the object determine the amount of kinetic energy. The car has mass (weight) and has speed due to driving. So you use the stored kinetic energy when you roll out.

Will all systems continue to function while rolling out in neutral gear?

Yes, all systems continue to function, the brakes, the power steering, the clutch etc. After all, you also switch 'over neutral' to a higher or lower gear?

Why roll out in neutral gear?

You can roll out in gear, but then your car comes to a halt fairly quickly. It is true that there is no fuel consumption. In neutral gear, however, you make more 'rollout' meters. The engine then uses very little fuel. Thanks to the larger roll-out distance, fuel consumption drops considerably.

Does the traffic behind you suffer from rolling out cars?

No, thanks to the existing speed and the weight of the car, the speed decreases very gradually. And before you let your car roll out, you check the traffic behind you. So you drive much more alert.

Why does the app not register when the speed exceeds 70 km/hrs?

The Petrollo app has been developed for use within city areas. The maximum speed there is 80 km / hour and rolling out is more rewarding thanks to the many stop points such as roundabouts and red traffic lights.

How does the app work?

When the car rolls out in neutral gear, the speed gradually decreases. With the help of the GPS satellite, the Petrollo app records the rolled out distance. The app calculates the reduced CO2 emissions and fuel savings via the built-in patented algorithm. The numbers are actual while you drive, shown in the app on your smartphone.

Accelerator is a money pump

If you let your car roll out, the app shows how much money it saves. Taking your foot off the accelerator yields money! Because your car becomes kind of a soapbox. That also means that rolling out makes you accelerate more relaxed. The the accelerator is a money pump. Accelerating too powerful means that the banknotes are flying out of your exhaust pipe !


About us

Hi! We’re Nico (left) and Paul. We have developed the Petrollo app to create CO2 awareness amongst drivers worldwide.
We think that CO2 and fuel costs reducing driving is best promoted by this app as green business gift.
The Petrollo app is designed to limit CO2 emissions from cars in a fun, effective and lucrative way. The app is not a measuring instrument but a means to raise awareness about CO2 emissions. It indicates and motivates.

Our company is based in the Netherlands.
Chamber of Commerce number 63303000
VAT number: NL177732143B01

Tel No: +31634824342 (Nico) / +31633951392 (Paul)