Valvoline FLEXFILL 75W-90 Full Synthetic Gear Oil 889785 | Limited Slip | 1 qt Flex Pouch

Valvoline FLEXFILL 75W-90 Full Synthetic Gear Oil — 889785

The Valvoline 889785 FLEXFILL 75W-90 is a full synthetic gear oil with a built-in limited slip additive, packaged in a 1-quart flex pouch designed for use with Valvoline’s FLEXFILL adapter tool. The flex pouch format enables clean, no-mess filling of differentials and manual transmissions with hard-to-reach or recessed fill ports — common on modern Ford, GM, Chrysler, and import vehicles.

Key Features

• Full synthetic 75W-90 formulation for year-round gear protection
• Built-in limited slip additive — no separate friction modifier required
• API GL-5 rated for differentials and manual transmissions
• FLEXFILL flex pouch format — designed for use with Valvoline FLEXFILL adapter tool
• No-mess, no-spill filling for recessed or hard-to-access fill ports
• Reduces wear, heat, and friction in high-load gear applications
• Sold individually (1 qt each)

Specifications

• Part Number: 889785
• Brand: Valvoline
• Product Line: FLEXFILL
• Viscosity: 75W-90
• Type: Full Synthetic Gear Oil
• API Rating: GL-5
• Limited Slip: Yes — additive included
• Container: 1 qt flex pouch
• Weight: 1.8 lbs
• Quantity: 1 (each)

Common Applications

For use in differentials and manual transmissions requiring 75W-90 GL-5 gear oil with limited slip additive, including select Ford, GM, Chrysler/RAM, and import applications. Use with Valvoline FLEXFILL adapter tool for best results.

Always verify fluid specification requirements for your specific vehicle before ordering.