Red Line 75W-140 GL-5 Gear Oil - Gallon - 4 Pack

Red Line 75W-140 is a fully synthetic GL-5 gear oil for high-load, high-heat hypoid differentials, with extreme-pressure additives and a friction modifier for quiet operation and excellent film strength at elevated temperatures. A common upgrade for towing, performance, and heavy-duty differentials. Case of four 1-gallon containers.

Specifications

Shipping

• In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
• Standard, expedited, and overnight options at checkout.
• Oversized items ship by freight and take longer.
• Backordered items ship as soon as stock lands — contact us for lead times.
• International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

• 30-day returns on new, uninstalled items in original packaging with all hardware.
• Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
• Installed or used parts can’t be returned — confirm fitment before you install.
• Special orders and custom items are final sale.
• Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Refund Policy