Step 1. Remove the cap and factory fitted aluminum sleeve.
Step 2. Put a screwdriver into the ring and pull on the cap – levering the screwdriver to remove the cap and chain.
Step 3. Pull the cap until the ring on the end of the chain appears in the neck.
Step 4. Manipulate the aluminum sleeve with a screwdriver and pliers if necessary.
Step 5. Remove the aluminum sleeve.
Step 6. Open the security legs of the Diesel Guard with a screwdriver.
Step 7. Pull the slide out and push quickly into the filler neck.
Step 8. The unit should lock into place and look like this.