Black plate (199,1)
Engine oil viscosity, or thickness, has an effect on fuel economy and cold-weather
operation (starting and oil flow).
Low-viscosity engine oils can provide improved fuel economy and cold-weather
performance.
But high-temperature weather conditions require higher-viscosity engine oils for
satisfactory lubrication.
When choosing an oil, consider the temperature range your vehicle will operate in before
the next oil change.
Then select the recommended viscosity from this chart above.
CAUTION
Using oils of viscosity besides those recommended for specific temperature ranges could
result in engine damage.
q
Inspecting Engine Oil Level
1. Be sure the vehicle is on a level
surface.
2. Warm up the engine to normal
operating temperature.
3. Turn it off and wait at least 5 minutes
for the oil to return to the sump.
4. Pull out the dipstick, wipe it clean, and
reinsert it fully.
Full
Low
OK
5. Pull it out again and examine the level.
It's OK between L and F.
But if it's near or below L, add enough
oil to bring the level to F.
CAUTION
Don't add engine oil over F. This may
cause engine damage.
6. Make sure the O-ring on the dipstick is
positioned properly before reinserting
the dipstick.
Maintenance and Care
Owner Maintenance
8-13
RANGER_F8M1-10-08I_Edition1 Page199
Friday, September 26 2008 3:7 PM
Form No.F8M1-10-08I
