Acura 2004 RL Owner's Manual page 275

Main Menu Table of Contents
Spark Plugs, Battery
Specifications:
NGK:
PFR5L-11
DENSO: PK16PR-L11
Spark Plug Gap:
0
0.04 in (1.1 mm)
0.1 mm
272
Maintenance
Battery
Check the condition of your car's
battery monthly. You should check
the color of the test indicator window,
and for corrosion on the terminals.
TEST INDICATOR WINDOW
Check the battery condition by
looking at the test indicator window
on the battery. The label on the
battery explains the test indicator's
colors.