[azfordman]

One more question....how critical is it to take a plug reading immediately after a hot run? I have to idle the car in 1st about 15 minutes down my driveway to get home. Will this slow drive affect the plug reading? Obviously I need to leave the car off and cool down to pull the plugs, so do I need to do this in town, say at a restaurant? Not too big of a deal, just curious if it really matters.