Sparkplug pics - Toyota Nation Forum : Toyota Car and Truck Forums

importcar · 09-20-2008, 04:07 PM

These are Denso PK20TR11 installed at the dealer 60,000 mi ago. They look worn to me. But I don't notice any drop in mpg, power, or rough idling. Is it time for new plugs?

Andrew Liu · 09-20-2008, 05:14 PM

Wow those are some high-res pictures, the detail is amazing.

Anyways, if the gap is okay and it's running fine, I see no reason to change it. Maybe if there's any way you could clean them, I would do that.

'_' · 09-20-2008, 05:20 PM

I haven't changed my sparkplugs and my car has just about 60K miles on it. The dealer said it was due for new ones so I went ahead and got some. Still need to install them though.

Zviator · 09-20-2008, 05:32 PM

WHen it needs to be replaced, will it give u a sign somehow ? engine code ?