ok, i forget how many miles we should do on a set of plugs, so I thought while I had the car in pieces to do the Throttle Body clean, I would change the plugs as well.
Well, I put AC Delco Rapidfire plugs in at 101K miles. Since then, about 90% of this cars driving has been 70Mph+ highway driving (I do a lot of miles). Well, I pulled these plugs today after 41K miles. I wish I had taken a photo - they were still perfect except for one, which was a bit blacker, but still ok. I am really happy with the AC Delco Rapidfires and thats all I am gonna buy from here on out.
Willwren, why did you ask about the back plugs? Is there a reason why one of the back plugs would be black?
92 SSE - My shopping cart
97 SSEi - My speed machine
95 Z28 - My Speedier machine
Check out my new site at: http://www.cardomain.com/id/croc97