I installed the Iridium plugs on my Brute the other day and I will say one thing: They definitely improved the starting of the machine. I have turned it on and off multiple times over the course of the past few days and she fires right up a lot better than before. Heck, that alone was worth the 7 bucks I paid for each one.

Does anyone else use these Iridium plugs? Other than the starting improvement, they are not supposed to have much of a gain over the regular NGK plugs. I will keep track of my mileage and see if there is an increase.

Bubba

 

thanks for the info, i think i'll be due for new plugs soon.

 

After further research, I will be putting them in my cars as their main advantage is a supposed 120,000 mile life. I have read somewhere a 3% gain in fuel economy as well. Not that I would go 120,000 miles on my car without any tune up, but heck for a dollar or two more than stock plugs why not go with those.

 

Be very careful leaving plugs in for 120k.

I've seen a LOT of car/trucks with the 100k plugs get frozen in the head. They actually say that if you are going to leave plugs in for 100k that you take them out and rotate them at 50k.

One of the last classes I took when I worked for Ford was all about the plug rotation recommendations. I saw A lot of 4.6 and 5.4 engines with plus frozen to the point where we had to take half the engine apart to fix it.

 

Hey bubba, if you like the plugs, as i do, try the NGK Power Racing cables! I put them on my quad, and its even better!!!! WWW.CLUBPLUG.NET. Get the part number CR1, and you have to get two of them.

 

I will check those out V2! Thanks for the tip. We'll see if they are in the right price range for me. I still have to allocate funds for new tires

 

28 bucks shipped, is what it cost me.

 

What is stated is not always so.....just ask the dealeship that put a new engine in my car after only 50,000 miles....it was supposedly a 100,000miles before the 1st tune-up, or so they say......96' 2.4liter quad 4

 

I always get at least 150k out of a car before I am done with it. Would I leave the plugs in that long, no. There a lemons out there where the engine $hits the bed at 50k, but I have been lucky I spose.