Engine Oil - Buick 2008 Lucerne Owner's Manual

A. Underhood Fuse Block. See Underhood Fuse Block
on page 5-106.
B. Remote Positive (+) Terminal. See Jump Starting on
page 5-48.
C. Windshield Washer Fluid Reservoir. See "Adding
Washer Fluid" under Windshield Washer Fluid
on page 5-41.
D. Engine Coolant Surge Tank and Pressure Cap See
Coolant Surge Tank Pressure Cap on page 5-28
and Cooling System (3.8L V6 Engine) on page 5-30
or Cooling System (4.6L V8 Engine) on page 5-36.
E. Remote Negative (−) Terminal. See Jump Starting on
page 5-48.
F. Power Steering Fluid. See Power Steering Fluid on
page 5-40.
G. Engine Oil Fill Cap. See "When to Add Engine Oil"
under Engine Oil on page 5-15.
H. Engine Oil Dipstick. See "Checking Engine Oil"
under Engine Oil on page 5-15.
I. Brake Master Cylinder Reservoir. See "Brake Fluid"
under Brakes on page 5-42.
J. Automatic Transmission Fluid Cap and Dipstick (Out
of View). See Automatic Transmission Fluid on
page 5-21.
K. Engine Air Cleaner/Filter. See Engine Air
Cleaner/Filter on page 5-20.

Engine Oil

Checking Engine Oil
It is a good idea to check the 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.
The engine oil dipstick handle is a yellow loop. See
Engine Compartment Overview on page 5-12 for
the location of the engine oil dipstick.
1. Turn off the engine and give the oil several minutes
to drain back into the oil pan. If you do not do this,
the oil dipstick might not show the actual level.
2. Pull 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 down, and check the level.
5-15