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Lubricant Specifications

A multipurpose, hypoid gear lubricant which conforms to the following specifications should be used. MOPAR Hypoid Gear Lubricant conforms to all of these specifications.
- The lubricant should have MIL-L-2105C and API GL 5 quality specifications.
- Lubricant is a thermally stable SAE 80W-90 gear lubricant.
- Lubricant for axles intended for heavy-duty or trailer tow use is SAE 75W-140 SYNTHETIC gear lubricant.
The 181 FBI axle lubricant capacity is 1.2 L (2.5 pts.).

CAUTION: If axle is submerged in water, lubricant must be replaced immediately to avoid possible premature axle failure.