Has anyone change their plugs yet, well I just did yesterday and boy was I in for a surprise. I mean it was very easy and didn't take very long. I was just wondering if anyone else had the same thing happen to them. Believe it or not, but factory installed one owner (me of course). Well what I'm trying to say is that toyota installed 2 different kind of spark plugs in my truck and just curious if that was purposely done or if they just fu@#ed up. Yes, I had NGK's on the driver side and Denso's on the passenger side. The only good thing I saw to this that I was able to tell which spark plug held up the best. Can anyone guess, It was the NGK's. They ran a lot cooler, hardly any burnt marks unlike the Denso's. The Denso's also left burnt carbon in the coil just a little over 40,000. So, if you are running Denso's you probably want to change them around 25,000 miles and bet the NGK's could easily lasy a good 50,000 miles.
Anybody else with this problem, just wondering if I should go bitch out the Dealership or not?