ACDelco Dexron LS 75W-90 Gear Oil 32 oz — GM Original Equipment with pre-blended limited-slip modifier

ACDelco GM Original Equipment 75W-90 Dexron LS gear oil is a factory-formulated lubricant for 2007-and-newer manual transmissions and transfer cases, supplied in a 32 oz bottle and pre-blended with a limited-slip friction modifier so no top-treat additive is required.

This ACDelco 10-4034 (88862624) formula was created to meet the lubrication needs of modern manual gearboxes and transfer cases introduced in 2007 and later. It provides the appropriate viscosity across operating temperatures and includes the friction modifier needed by limited-slip differentials, eliminating the extra step of adding a separate top-treat product. That makes it a straightforward, OEM-aligned option when servicing compatible GM geartrain components.

Will this gear oil work for my 2007-or-later manual transmission?

Yes — the product is specifically engineered for manual transmissions and transfer cases from model year 2007 onward. Check your vehicle’s owner manual for viscosity and specification match, but if your GM service information lists Dexron LS 75W-90, this bottle is formulated to meet that guidance.

• Designed for 2007+ manual transmissions and transfer cases
• Matches factory Dexron LS 75W-90 recommendations
• Use when GM service specs call for Dexron LS gear oil

Do I need to add a limited-slip additive with this ACDelco oil?

No additional limited-slip (LS) friction modifier is necessary. ACDelco’s Dexron LS 75W-90 already contains the proper friction-modifying chemistry to support limited-slip differentials and clutch-type torque management elements.

• Pre-blended LS friction modifier included
• No separate top-treat additive required
• Simplifies service and reduces mix-up risk

How does the 75W-90 viscosity help in real-world use?

The 75W-90 viscosity offers a balance between cold-start flow and high-temperature film strength. It flows readily at lower temperatures for shift quality on startup while maintaining protective film under load and heat during highway speeds and towing scenarios.

• 75W rating improves cold-weather flow and engagement
• 90 rating at operating temperature sustains gear protection
• Helps reduce wear across a range of operating conditions

How should I choose and store this 32 oz bottle for maintenance?

The 32 oz container is convenient for topping off or performing partial service where capacity is limited. Store the sealed bottle in a cool, dry place away from direct sunlight, and follow vehicle-specific fill volumes and change intervals listed in the service manual.

• 32 oz size suitable for topping off or small services
• Keep sealed until use; store away from heat and sunlight
• Follow manufacturer fill volumes and disposal guidelines

Who this is for: Technicians, DIY enthusiasts, and fleet managers who service GM vehicles built in 2007 or later and need an OEM-compatible Dexron LS gear oil with built-in limited-slip friction modifier. It’s a practical choice when the vehicle service information specifies 75W-90 Dexron LS and you want a single-product solution without adding external additives. Always confirm the required specification in your owner’s manual or service documentation before use.