ACDelco 75W-90 GL-5 Synthetic Axle Lubricant — 1 qt (32 oz), high-temp stability

ACDelco 75W-90 GL-5 Synthetic Axle Lubricant (10-4016) is a fully synthetic gear oil in a 1‑quart bottle formulated to protect differentials and axle gearsets across extreme temperatures and heavy loads.

Designed to meet API GL‑5 performance requirements, this 75W‑90 formulation provides thermal and oxidative stability for longer fluid life, reliable protection during high‑speed or towing conditions, and good low‑temperature flow for cold starts. The product is sold in a 32‑ounce container and includes a grape scent for a less pungent application experience.

How does this lubricant perform under towing and sustained high‑speed conditions?

The synthetic base and additive package resist breakdown from high temperatures and extreme pressure, helping gears stay lubricated during long highway runs or when hauling heavy loads. That stability reduces the risk of premature wear and helps maintain consistent gear operation.

• Designed for extreme pressure (GL‑5) gear contacts
• Resists oxidation and thermal degradation during prolonged heat exposure
• Maintains film strength under heavy loads and repeated stress

Will it work in cold climates and at startup?

Yes — the 75W cold‑viscosity rating ensures the oil remains fluid enough at low temperatures to flow quickly during cold starts, reducing gear churning and improving immediate lubrication until operating temperatures are reached.

• Low‑temperature fluidity for faster circulation on startup
• Less gear wear during initial engagement in winter conditions
• Helps prevent noise and rough engagement caused by thickened oils

What equipment and vehicles can use ACDelco 75W‑90 GL‑5 axle lubricant?

This product is intended for hypoid differentials, transaxles, and axle gears that specify API GL‑5 service and a 75W‑90 viscosity. It is appropriate for many passenger cars, light trucks, and SUVs; always consult the vehicle maker’s specifications before use.

• Meets API GL‑5 for severe hypoid gear service
• Suitable for many OEM differentials that call for 75W‑90 synthetic gear oil
• Not a substitute where a different specification (e.g., GL‑4 only or manufacturer‑specific fluids) is required

Are there any user‑experience benefits or special features?

Beyond performance, ACDelco’s formulation adds a mild grape scent to reduce the typical strong odor of gear oils during handling. The synthetic blend also supports extended fluid life, which can mean longer service intervals when used under recommended conditions.

• Grape scent for a more pleasant application and handling
• Fully synthetic for enhanced life and stability vs conventional oils
• Sold in a convenient 1‑quart (32 oz) bottle for easy topping or small fills

Who is this for? Automotive owners and professional technicians looking for a reliable, OEM‑grade 75W‑90 GL‑5 synthetic axle lubricant — especially those who tow, drive long highway distances, or operate vehicles in variable climates. It suits anyone who wants a stable, long‑life gear oil in a practical 1‑quart size and prefers a milder scent during handling. Always verify your vehicle’s recommended axle oil specification before changing fluids.