Replacement AdBlue cap

Replacement AdBlue capTested and verified, fits perfectly. A 100% fill modifier has been added to prevent leaks and improve the seal. Print only in PETG due to its chemical resistance; do not print in PLA as degradation may cause problems.I have decided to keep the hex key opening system to prevent easy access by just anyone.To further improve the seal, you can add an O-ring to the inside of the cap or print one in 32mm diameter TPU.