3.5RL V6-3474cc 3.5L (2001)
3. Replace the plug at the specified interval, or if the center electrode is rounded as shown below:
NOTE: Use only the spark plugs listed below.
Spark Plugs
PFR5L - 11 (NGK)
PK16PR - L11 (DENSO)
4. Apply a small quantity of anti-seize compound to the plug threads, and screw the plugs into the cylinder head finger-tight. Then torque them to 18
N.m (1.8 kgf.m, 13 lbf.ft).