IS 250 RWD V6-2.5L (4GR-FSE) (2007)
d. Check the spark plug electrode gap.
Maximum electrode gap for a used spark plug: 1.3 mm (0.051 in.)
If the gap is greater than the maximum, replace the spark plug.
Electrode gap for a new spark plug: 1.0 to 1.1 mm (0.039 to 0.043 in.)
NOTE: If adjusting the gap of a new spark plug, bend only the base of the ground electrode. Do not touch the tip. Never attempt to adjust the gap
of a used plug.