Madflyer
Jedi Knight
Offline
NGK 5's If it ran well why change?? You say you replace every 5K do you mean clean and gap?? I tune-up maybe ounce a year TR 6 I do not remember how old my plugs are. I have electronic not points. If I go into town in the TR it is a 100 mile round trip and add a club run it is over 200 miles. not much stop and go in Nevada.
So what plug and why ( some help with this guys ) fuel grade., motor temp as in thermostat, points or other, stock or hot coil, elevation to sea level above or below 4,000 feet, damp condition, and on say 6cyl motors look at the back plug for true reading it's hotter back there. Inside the cyl can only be seen by the plug color. Madflyer
So what plug and why ( some help with this guys ) fuel grade., motor temp as in thermostat, points or other, stock or hot coil, elevation to sea level above or below 4,000 feet, damp condition, and on say 6cyl motors look at the back plug for true reading it's hotter back there. Inside the cyl can only be seen by the plug color. Madflyer