Speaking of plugs I replaced last week...here's a photo

[billb]

Attached photo shows the plugs I just took out, with 15k miles on them. 5 of the 6 looked nearly identical, but #5 plug looked a little damp compared to the rest. Car uses oil, but I believe it leaks more than it burns. I don't know compression numbers.

[Bill R.]

Doesn't look like its using much from the photo. I see mostly gas deposits, no oil

[billb]

The derriere-dyno seems to indicate performance is back up to normal after the plug swap. Must've had one that wasn't too happy in there (had an off-idle stumble that seems to have gone away).