Al,
I'm using the NGK "Laser Iridium" spark plugs as recommended for the Renesis engines, p/n RE7C-L and RE9B-T. You can get them for about $20/ea + shipping on EBAY.
Mark
On Wed, Oct 21, 2009 at 10:03 AM, Al Gietzen <ALVentures@cox.net> wrote:
I have at least 60-70 hrs on the Iridium plugs and they are performing flawlessly. I pulled them out and took a look a few hours ago and they looked great, so I put them back in. As far as I'm concerned, Iridiums are the only plugs I will use from here on. This could change if I have to start burning 100LL.
Mark,
Are you using the Denso IRT 0131 plug? I looked at those, but I can get 6 sets of the NGK B9EGV for the same amount of money, and get some change back. I change them at about 35 - 40 hours, or a less if I burn a couple tanks of 100LL. But I guess if the iridium will go 200 hours it would be worth the cost.
Al G
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