Nissan 240SX/Altima 1993-1998 Repair Guide

Drive Axle

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The drive axle oil on the 240SX should be inspected every 15,000 miles (24,000 km) and changed every 30,000 miles (48,300 km).

FLUID RECOMMENDATIONS



Nissan recommends the use of a 80W-90 weight gear oil meeting API specification GL-5.

LEVEL CHECK



See Figure 1



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Fig. Fig. 1: Drive axle oil is at the proper level if it just reaches the bottom of the filler hole

  1. Raise and support the vehicle safely.
  2.  
  3. With the vehicle level, remove the filler plug from the back side of the differential.
  4.  
  5. Drive axle oil is at the proper level if it just reaches the bottom of the filler hole. If the oil level is low, carefully insert your finger (watch out for sharp threads) into the hole and check that the oil is up to the bottom edge of the filler hole.
  6.  
  7. If not, add oil through the hole until the level is at the edge of the hole. Most gear oils come in a plastic squeeze bottle with a nozzle that making addition simple. You can also use a common kitchen baster. Use only the specified fluid.
  8.  
  9. Replace the plug and tighten to 29-43 ft. lbs. (39-59 Nm). Check for leaks.
  10.  
  11. Lower the vehicle.
  12.  

DRAIN & REFILL



It is a good idea to warm the drive axle oil first so it will flow better. This can be accomplished by 15-20 miles (24-32 km) of highway driving. Oil which is warmed to normal operating temperature will flow faster, drain more completely and remove more contaminants from the drive axle.


CAUTION
The EPA warns that prolonged contact with used drive axle oil may cause a number of skin disorders, including cancer! You should make every effort to minimize your exposure to used drive axle oil. Protective gloves should be worn when changing the oil. Wash your hands and any other exposed skin areas as soon as possible after exposure to used drive axle oil. Soap and water, or waterless hand cleaner should be used.

  1. Raise and support the vehicle safely.
  2.  
  3. With the vehicle level, remove the filler plug from the back side of the differential.
  4.  
  5. Place a drain pan under the drain plug.
  6.  
  7. Remove the drain plug from the back side of the differential.
  8.  
  9. Allow the oil to drain from the drive axle completely.
  10.  
  11. Install the drain plug and tighten to 29-43 ft. lbs. (39-59 Nm).
  12.  
  13. Inspect the oil for contaminants. A silver haze in the oil indicates the presence of metal. Milky white oil indicates the presence of water.
  14.  
  15. Refill the drive axle to the proper level with the recommended grade and viscosity oil.
  16.  
  17. Drive axle oil is at the proper level if it just reaches the bottom of the filler hole.
  18.  
  19. Replace the plug and tighten to 29-43 ft. lbs. (39-59 Nm). Check for leaks.
  20.  
  21. Lower the vehicle.
  22.  

 
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