Town Car V8-302 5.0L (1987)
Figure 1
8. See where the oil level is on the graphic, stamped on the dip stick, Figure 1. The oil level should be between the top of the cross hatch area and the
"F" in "FULL".
9. Using a file, scribe a notch on the edge of the dip stick where the actual oil level is at.
NOTE:
THE SCRIBE MARK ON THE DIP STICK IS THE ACTUAL OIL LEVEL FULL MARK. USE THE SCRIBE MARK AS THE
INDICATOR FOR ALL FUTURE OIL READINGS THAT ARE TAKEN.
10. Record the mileage on the vehicle.
11. When the vehicle is returned to the customer, show them where the dip stick is located and how to read it. Make sure you point out that the scribed
notch on the dip stick is the "True Full Mark". Also point out the following to the customer:
^
Your vehicle is now part of an engine oil consumption test.
^
The vehicle has new engine oil and a new oil filter.
^
Your vehicles mileage has been recorded.
^
You are to check the engine oil level every time you stop for fuel.
^
If the engine oil level indicated on the dip stick is in the "ADD ONE QUART" range, contact the dealership to return for a re-inspection.
NOTE:
DO NOT ADD ENGINE OIL. THIS NEEDS TO BE DONE BY THE DEALERSHIP TO ESTABLISH THE CORRECT CONSUMPTION
RATE.
12. When the customer returns for the re-inspection, make sure the engine oil level is in the "ADD ONE QUART" area on the dip stick.
13. Check and record the vehicles mileage at this time. This will be needed to calculate the oil consumption rate later.
14. Add and record the amount of oil it takes to restore the engine oil level on the dip stick to the "True Full Mark" scribed during Step 9.
15. Calculate the oil consumption rate as shown in the following example:
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Starting Odometer Reading recorded in Step 10 at start of test = 22,100
^
Ending Odometer Reading recorded in Step 13 at end of test = 22,800
^
Accumulated mileage = 700 miles
^
Oil added 1 quart = 1 quart
Once you have the accumulated mileage and the oil added, use the following formula to calculate the actual oil consumption:
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Calculated oil consumption = Accumulated miles (divide by) oil added (in quarts)
^
700 miles per quart = 1 quart
