Engine Oil (Except Diesel) - GMC 1994 Yukon Owner's Manual

Engine Oil (Except Diesel)
It's a good idea to check your engine oil every time you get fuel. In order to
get an accurate reading, the oil must be warm and the vehicle must be on
level ground.
Turn off the engine
and give the oil a few
minutes to drain back
into the oil pan. If you
don't, the oil dipstick
might not show the
actual level.
To Check Engine Oil
e
h l l out the dipstick and clean it with a paper towel or cloth, then push it
back in all the way. Remove it again, keeping the tip lower.
When to Add Oil
If the oil is at or below the ADD mark, then you'll need to add some oil. But
you must use the right kind. This section explains what kind of oil to use.
For crankcase capacity, see "Capacities and Specifications" in the Index.