Red Line Gear Oils are designed to provide excellent low-temperature shiftability and improved gear protection at higher temperatures. Red Line Gear Oils will reduce differential temperatures 10-70°F. Efficiency improvements between 1-5% are typical. The synthetic base stocks used have tremendous thermal stability and provide the best film strength available. The unique combination of base stocks and additives allow Red Line gear oils to carry higher loads compared to petroleum lubricants.

| REDLINE GEAR OIL SOLD BY CASE (12 QUARTS) ONLY. NO EXCEPTIONS PLEASE. | |||
| REDLINE | Part Number | Description | Price |
| 57904 | 75W90 -- Gear Oil. Recommended for most street-driven and racing differentials. Excellent performance in conventional and limited-slip units. Also for limited-slip manual transaxles which require a 90 WT oil. Contains limited-slip friction modifiers. | $114.62 | |
| 75W90NS -- Gear Oil. Recommended for manual transmissions and non-limited-slip transaxles that recommend 90 WT oils. Can be used in racing limited-slip units to increase lockup and reduce wheel spin. Street-driven rear-wheel drive cars should use regular Red Line 75W90. | $114.62 | ||