Volvo Coupes/Sedans/Wagons 1970-1989 Repair Guide




See Figures 1, 2 and 3

Always check the engine oil with the engine warm. Check the engine oil at least once a week.

With the vehicle on a level surface, allow the engine to sit at least three to five minutes after it has been shut off before checking the oil level; this will give the oil that has been circulating through the engine a chance to drip back down into the oil pan. Locate the engine dipstick: it is usually located on the left side of the engine. On the V6 engines (B28 and 280 family) the dipstick is on the right side of the motor, just forward of the right side shock tower.

Remove the dipstick and clean the oil off the end with a rag. Insert the dipstick again, wait a few seconds and pull it out. The oil level should be within the cross-hatched section of the dipstick. Oil level should never drop below or rise above the cross-hatched marks. If the oil level is below or near the bottom of the cross-hatched marks, add oil of the same type and viscosity, a little at a time, until the oil level is brought back within normal operating range.

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Fig. Fig. 1: Pull the dipstick from its tube to check the engine oil level

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Fig. Fig. 2: Wipe the dipstick with a clean rag, then reinsert

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Fig. Fig. 3: Engine oil should always be within the cross-hatched area of the dipstick


See Figures 4, 5, 6, 7, 8, 9 and 10

Certain operating conditions may warrant more frequent changes. If the vehicle is used for short trips, water condensation and low-temperature deposits may make it necessary to change the oil sooner. If the vehicle is used mostly in stop-and-go city traffic, corrosive acids and high-temperature deposits may necessitate shorter oil changing intervals. The shorter intervals are also true for industrial or rural areas where high concentrations of dust contaminate the oil. Cars used for carrying heavy loads, pulling trailers, or in mountainous areas may also need more frequent oil and filter changes.

Change the engine oil and filter according to the maintenance intervals chart in this section.

Used motor oil may cause skin cancer if repeatedly left in contact with the skin for prolonged periods. Although this is unlikely unless you handle oil on a daily basis, it is wise to thoroughly wash your hands with soap and water immediately after handling used motor oil.

After the engine has reached operating temperature, shut it off, place a drip pan under the sump (oil pan), and remove the drain plug. Allow the engine to drain thoroughly before replacing the plug. Make certain the drain plug is in place and tightened before continuing. Place the drip pan beneath the oil filter. To remove the filter, turn it counterclockwise with a strap wrench.

If necessary, brush away any accumulated dirt from the drain plug bolt prior to removing it.

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Fig. Fig. 4: If there is an oily mess built up around the bottom of the oil pan, first use a stiff brush to clear it away

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Fig. Fig. 5: Use the correct size socket to remove the drain plug bolt

Wipe the contact surface of the new filter clean of all dirt and coat the rubber gasket with clean engine oil. Also wipe clean the adaptor on the block. To install, hand-turn the new filter clockwise until the gasket just contacts the cylinder block. Do not use a strap wrench to install. Then hand-turn the filter 1 / 2 additional turn.

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Fig. Fig. 6: Try to keep your hands out of the heavy stream that will emerge as soon as the bolt is removed

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Fig. Fig. 7: Allow the engine to drain thoroughly before re-installing the drain plug bolt

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Fig. Fig. 8: Use a strap wrench to remove-but not to install-the oil filter

Volvo recommends replacing the oil filter at every oil change.

Unscrew the filler cap on the valve cover and fill the crankcase to the proper level on the dipstick with the recommended grade of oil. Replace the cap, start the engine, and operate at fast idle. Check the oil filter contact area and the drain plug for leaks and attend to any leaks as necessary.

Please dispose of used motor oil properly. Do not throw it in the trash or pour it on the ground. Take it to your dealer, local service station or other oil recycling location.

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Fig. Fig. 9: Remove the filler cap to add the motor oil

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Fig. Fig. 10: Use a funnel to avoid spilling the oil on the engine