a thicker spark for lighting the fuel more efficiently and a more lasting duration of the spark plug itself.
Wires and plugs constitute a tune-up. DO NOT gap the plugs, it will ruin the platinum coating.
use factor recommended spark plugs most likely platinum
NGK platinum plugs
Platinum spark plugs, 100K. Standard spark plugs, 50K.
autolite double platinum you can find them at most auto part stores
You have to use platinum-tipped spark plugs ONLY.
Standard spark plugs, 50000 miles. Platinum tip spark plugs, 100000 miles.
If you have platinum spark plugs, 100K. If you have standard plugs, 50K.
regular copper plugs (suppressor or resistor) 30k miles single platinum plugs with DIS type I or type II ignition 45k miles single platinum with distributor (presumably HEI) or COP ignition 60k miles double platinum plugs 60k miles iridium plugs 100k to 120k miles, possibly longer This assumes that you do not have a known or suspected problem with any of your spark plugs
yes....
long time
Standard plugs are about a $1.50. Platinum plugs are about $4 and iridium plugs are about $7.