Nissan Maxima 1993-1998 Repair Guide

Engine

Print

OIL LEVEL CHECK



See Figures 1, 2, 3 and 4

The best time to check the engine oil is before operating the engine or after it has been sitting for at least 10 minutes in order to obtain an accurate reading. This will allow the oil to drain back in the crankcase. To check the engine oil level, make sure the vehicle is resting on a level surface, remove the oil dipstick, wipe it clean and reinsert the stick firmly for an accurate reading. The oil dipstick has two marks to indicate high and low oil level. If the oil is at or below the "low level" mark on the dipstick, oil should be added as necessary. The oil level should be maintained in the safety margin, neither going above the "high level" mark or below the "low level" mark.



Click image to see an enlarged view

Fig. Fig. 1: Be sure to push the dipstick all the way down to obtain an accurate reading



Click image to see an enlarged view

Fig. Fig. 2: The engine oil level should ALWAYS be maintained between the marks



Click image to see an enlarged view

Fig. Fig. 3: Unscrew the cap on the front valve cover to add oil to the engine



Click image to see an enlarged view

Fig. Fig. 4: Add oil in small increments; overfilling the engine with oil can damage internal components

OIL & FILTER CHANGE



See Figures 5 through 12

The Nissan factory maintenance intervals (every 7500 miles or 6 months) specify changing the oil filter at every second oil change after the initial service. We recommend replacing the oil filter with every oil change. For the small price of an oil filter, it's cheap insurance to replace the filter at every oil change. One of the larger filter manufacturers points out in its advertisements that not changing the filter leaves 1 quart (0.9L) of dirty oil in the engine. This claim is true and should be kept in mind when changing your oil.

  1. Run the engine until it reaches normal operating temperature.
  2.  
  3. Raise and safely support the vehicle and support it on safety stands if necessary to gain access to the filter.
  4.  
  5. Slide a drain pan of at least 6 quarts (6L) capacity under the oil pan.
  6.  


CAUTION
The EPA warns that prolonged contact with used engine oil may cause a number of skin disorders, including cancer! You should make every effort to minimize your exposure to used engine 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 engine oil. Soap and water, or waterless hand cleaner should be used.

  1. Loosen the drain plug. Turn the plug out by hand. By keeping an inward pressure on the plug as you unscrew it, oil won't escape past the threads and you can remove it without being burned by hot oil.
  2.  



Click image to see an enlarged view

Fig. Fig. 5: Always use the proper size wrench when loosening or tightening the drain plug



Click image to see an enlarged view

Fig. Fig. 6: After the drain plug is loosened, unscrew it by hand while pushing in ...



Click image to see an enlarged view

Fig. Fig. 7: ... then quickly pull it away, and let the oil drain



Click image to see an enlarged view

Fig. Fig. 8: The copper washer should be replaced to ensure a leak-free seal



Click image to see an enlarged view

Fig. Fig. 9: Carefully clean any dirt around the drain hole that would interfere with the copper washer

  1. Allow the oil to drain completely and then install the drain plug. Don't overtighten the plug or you'll be buying a new pan or a trick replacement plug for damaged threads.
  2.  
  3. Using an oil filter wrench, remove the oil filter. Keep in mind that it's holding about 1 quart (0.9L) of dirty, hot oil.
  4.  



Click image to see an enlarged view

Fig. Fig. 10: Use an oil filter wrench to loosen the filter



Click image to see an enlarged view

Fig. Fig. 11: This is another example of an oil filter wrench. Select the type which best suits your application



Click image to see an enlarged view

Fig. Fig. 12: After the oil filter is loosened with a wrench, spin it off the housing. Keeping the filter upright will minimize spillage

  1. Empty the old filter into the drain pan and dispose of the filter and old oil.
  2.  

One ecologically desirable solution to the used oil disposal problem is to find a cooperative gas station owner who will allow you to dump your used oil into his tank or take the oil to a reclamation center (often at garages and gas stations).

  1. Using a clean rag, wipe off the filter adapter on the engine block. Be sure the rag doesn't leave any lint which could clog an oil passage.
  2.  
  3. Coat the rubber gasket on the filter with fresh oil. Spin it onto the engine by hand; when the gasket touches the adapter surface give it another 1 / 23 / 4 turn. No more or you'll squash the gasket and it will leak.
  4.  
  5. Refill the engine with the correct amount of fresh oil.
  6.  
  7. Crank the engine over several times and then start it. If the oil pressure indicator light doesn't go out or the pressure gauge shows zero, shut the engine down and find out what's wrong.
  8.  
  9. If the oil pressure is OK and there are no leaks, shut the engine off and lower the vehicle.
  10.  

 
label.common.footer.alt.autozoneLogo