Anybody beside BillionPa use Iridium Spark Plugs?

[Jehu]

Seems a couple of us report use albeit with apparent satisfaction. Any furthur developments ?

[Zeppa]

Just ordered some , let you know in a few days.

[Eric540i]

What's your verdict on the plugs?

[Bill R.]

including one of my own. No problems and they seem to work well.

[liquidtiger720]

I have the denso iridium's, but haven't had time to put them in yet. Soon, very soon.

[gale]

I ran the original Denso Iridiums in my Toyota 4.7 V-8 for 100k miles and they looked to be in very good condition when I replaced them. I did remove them at 31k to put a slight bit of anti-sieze on them so they would still come out at 100k. I replaced them with the same plug. Autohaus AZ had good prices. I got mine at our local Checkers for about $1 more. Do not try to gap them, the tip is really skinny & is harder than a feeler gage and can dig in and snag and snap the tip off. They should come with the correct gap for your engine. I'm thinking iridiums should do very well in most modern engines as long as there is a direct part number for a given application.

[Eric540i]

Apart from their longevity, are there other benefits such as significantly reduced fuel consumption and perhaps some extra oomph?

[BillionPa]

yes.

[BillionPa]

well, not significant fuel consumption. if you make use of that extra oomph, then the fuel consumption will go up. there is only about a percent or 2 extra torque, but the more efficient electrode design smooths out the curve.

[TC535i]

I use em in my supercharged 318, cuz it's the only plug I can get in a colder heat range than stock. Happy with them there, but I like stock range replacements in my stock cars.