WIT WHATEVER IT TAKES TRANSMISSION PARTS, INC Ford XL-3 Friction Modifier 4 oz Twin Pack — reduces limited‑slip chatter, OEM formu

Ford Genuine Fluid XL-3 is a concentrated friction modifier designed to reduce limited-slip differential noise and improve gear engagement when mixed into the correct lubricant.

This twin pack contains two 4-ounce bottles of the XL-3 friction modifier from WIT WHATEVER IT TAKES TRANSMISSION PARTS, INC, formulated to be added to specified differential and gear oils. It’s intended for use where the vehicle manufacturer recommends a friction modifier to manage limited-slip clutch chatter or to adjust frictional characteristics in hypoid gear sets. Use strictly in accordance with the vehicle owner’s manual and the lubricant manufacturer’s guidance to achieve the intended performance.

When should I use XL-3 in my vehicle?

Use XL-3 when the vehicle manufacturer or service manual explicitly calls for a friction modifier for limited-slip differentials or specific gearsets. It’s not a universal additive—only add it when recommended to avoid altering lubricant properties unintentionally.

• Add when the service schedule or differential label specifies a friction modifier.
• Useful after differential servicing or fluid changes if chatter appears.
• Apply only in the correct dosage to preserve lubricant performance.

How do I apply the 4 oz XL-3 bottles correctly?

Each 4-ounce bottle is a measured dose intended to be mixed into the differential or gear oil at the vehicle maker’s specified concentration. Pour the additive into the fill opening or into the new oil during a service interval, then operate the drivetrain briefly to ensure even distribution.

• Follow the vehicle or lubricant maker’s ratio—do not exceed recommended amounts.
• Introduce XL-3 into the differential via the fill hole or during oil replacement.
• Drive the vehicle a short distance to circulate and seat the modifier properly.

What benefits can I expect without overpromising?

When used as directed, XL-3 can help reduce limited-slip ‘chatter’ and fine-tune friction behavior in compatible gear systems. It modifies surface interaction in the lubricant to promote smoother engagement of clutch packs and quieter operation under certain conditions.

• Can reduce noise and vibration from limited-slip differentials when compatible.
• Helps adjust clutch pack engagement characteristics in approved systems.
• Formulated specifically for automotive gear and differential applications.

Who is this product for?

This product is aimed at vehicle owners, technicians, and independent service shops working on Ford vehicles or other systems that explicitly call for Ford XL-3 friction modifier. It’s appropriate for those performing differential or axle maintenance who need an OEM-specified additive to maintain manufacturer-recommended friction characteristics. Avoid using it in systems that do not require a friction modifier or where alternate additive chemistries are specified.

Important usage notes: always confirm compatibility with your vehicle’s service manual before adding any additive. Overuse or addition to incompatible lubricants can change viscosity, additive chemistry, and wear protection. Dispose of any used containers per local regulations and store bottles sealed in a cool, dry place away from direct heat or flames.