You're asking about the best hinge lubricant, but WD-40, PF, and GT85 are actually different products with distinct applications and purposes. Let's break down which is best for hinges and why:

* WD-40: While widely known, WD-40 is not the best for hinges. It's primarily a water displacement and corrosion inhibitor. While it can offer temporary lubrication, it tends to evaporate quickly and attract dust, leaving a sticky residue.

* PF (Penetrating Fluid): PF is also a water displacement and corrosion inhibitor, similar to WD-40. Not ideal for hinges.

* GT85: This is the best option for hinges! GT85 is a high-performance lubricant designed for long-lasting protection and smooth operation. It's a dry lubricant that won't attract dust and offers excellent wear protection.

Here's a summary:

* For Hinges: Use GT85. It's designed for lubrication and will keep your hinges running smoothly for a longer time.

* For Water Displacement and Corrosion: Use WD-40 or PF. These are better for protecting metal parts from rust and water damage.

Important Note:

* Always check the manufacturer's instructions for specific cleaning and lubrication recommendations for your particular hinges.

* Apply lubrication sparingly. Too much can attract dust and dirt, making the problem worse.

* Wipe away any excess lubricant. This will help keep your hinges clean and free of buildup.

I hope this helps!