AMSOIL Slip Lock Differential Additive

Understand this product

Slip Lock is a differential friction modifier intended for applications that require this type of additive. It serves a different purpose from replacing the full gear-oil fill.

Check whether the selected gear lubricant and differential actually require additional friction modifier; do not add it automatically.

Axle and gear lubrication

Check both the gear-oil grade and the performance specification required by the component. Axles, synchronized manual transmissions and other gearboxes may need different additive chemistry.

No universal vehicle fitment is implied by this listing. Use the exact product or part number when checking application information.

Specifications & product documents

Product

AMSOIL Slip Lock Differential Additive

Brand

AMSOIL

Listed grade

See product documentation

Application status

Verify the exact equipment requirement

• Read / download product bulletin (PDF) g1968.pdf · 106 KB · web-optimized copy · Downloaded October 24, 2026Original manufacturer PDF ↗

The manufacturer bulletin contains the detailed applications, test methods and any service limitations. A published typical test value is not a guarantee for every operating condition. “Recommended for” language should not be read as a claim of formal manufacturer approval.

Official AMSOIL product information ↗ · Listing reviewed October 24, 2026. Local PDFs are web-optimized saved copies; consult the official source for later revisions.

Use it as part of a complete service plan

Measure the specified fill level using the manufacturer’s procedure. Account for the axle or gearbox model and service conditions when planning changes. Inspect leaks or unusual noise rather than treating a lubricant change as a repair.

Before you order

1. Confirm the exact product, specification and application.
2. Check the package size or part number below.
3. Review the current label and bulletin for restrictions.
4. Complete your purchase on AMSOIL.com using the selected package.

Need help narrowing the choice? Contact Kyle Holdridge with the equipment model and required specification.