Volvo Workshop Manuals
940 L4-2.3L SOHC VIN 88 B230F (1992)
Engine, Cooling and Exhaust > Engine > Engine Lubrication > Engine Oil > Component Information > Technical Service Bulletins > Oil Change Interval - Manual Correction > Page 3264
When topping up the engine, note that it takes a long time for the oil to run all the way down to the sump, which is why the oil level should NOT be
Never add more oil than the quantity recommended in the applicable car owner's manual. Also see under REASONS FOR HIGH OIL CONSUMPTION.
REASONS FOR HIGH OIL CONSUMPTION
Pistons and piston rings
INSTRUCTIONS FOR MEASURING OIL CONSUMPTION
The test should be carried out during 600 miles or 1,000 kms and measuring should not be made with the oil dipstick but only by weighing the oil in the
Run the engine warm until the oil temperature has reached a normal operating temperature (minimum 15 minutes normal driving). Park the car on
Run the engine again for a period of 5 minutes for blend and distribution of added oil.
Drain the oil into a clean container (minimum of 5 qt. capacity) for at least 10 minutes to allow complete drainage of the oil sump.
Weigh the oil. Fill in the weight, mileage and vehicle data on the attached report form.
Fill the engine with the weighed oil.
After the test drive of at least 600 miles or 1,000 kms, or when the oil level has dropped to the minimum mark of the dipstick, the oil in the oil
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