X-Man Design 10K Silicone Diff Fluid is a 10K silicone “diff” lubricant (standard 10k diff silicone) from the X-Man Design line (QiYi MoFangGe), made to reduce friction and add control—often giving more grip/stickiness and a calmer, more stable turning feel.

Manufacturer

• Brand / manufacturer: X-Man Design (QiYi MoFangGe)

What it’s for

• Lubricating pieces and/or the core
• Especially useful on contact areas (“feet”/sliding zones) when you want more control and stability

Pros

• Control + stability: can increase grip and make the cube more controllable
• Versatile: works on pieces and on the core
• Silicone base: typically lasts longer than water-based lubes

Cons

• Easy to over-apply: thicker lube can slow the cube and feel gummy if you use too much
• Harder to clean excess: silicone residue usually takes longer to remove

How to apply

1. Use a tiny amount (about 1 drop) on internal sliding/contact areas.
2. Turn the cube for 30–60 seconds to spread evenly.
3. Add only a little more if needed.

Packaging

• Amount: 5 mL (5cc)
• Bottle: clear plastic bottle with the X-Man logo

Extra

• Often recommended as a straightforward “baseline” silicone lube and commonly paired with the X-Man Tornado series.