How to Install FuelMarble: A Step-by-Step Guide

Start Saving Fuel in 2 Minutes: The Complete FuelMarble Installation Guide

FuelMarble is one of the simplest performance upgrades you can add to any vehicle.
It requires no mechanics, wiring, or engine tuning.
Installation takes less than two minutes, and the device begins working immediately.

FuelMarble works for:

• personal vehicles

• delivery vans

• commercial fleets

• agricultural machinery

• heavy trucks

• marine vessels

• boilers at home

The process below is identical for all of them.

⚠️ Safety First (Read Before Installation)

• The engine must be OFF. Remove the key from the ignition.

• The engine must be COOL. Never open a coolant tank when hot. Wait 30–60 minutes after driving.

• Coolant Reservoir ONLY. FuelMarble is placed in the coolant reservoir tank — never in the fuel tank.

These rules protect you from hot pressurised coolant, and they ensure the correct placement of the device.

Step-by-Step Installation Guide

Step 1 - Locate the Coolant Reservoir

Open the hood once the engine is fully cool.
Find the Coolant Reservoir Tank, usually a white or translucent plastic container with coloured coolant (pink, green, or yellow).

Make sure the coolant is between the Minimum and Maximum lines.

Step 2 - Insert the FuelMarble

Unscrew the reservoir cap.
Drop the entire FuelMarble device inside the tank — it is designed to sit submerged.

As it rests in the coolant, FuelMarble enhances thermal stability, which helps the engine burn fuel more completely.

Step 3 - Close the Cap and Drive

Tighten the reservoir cap, close the hood, and you’re done.
No maintenance, no replacement schedule.
FuelMarble works continuously as you drive.

Choosing the Correct FuelMarble Size

Correct sizing ensures the strongest fuel savings and emissions reduction.