Originally Posted by trommie
Do you even know what platfroms Iridium or Bosh 'platnum" plugs are used in, and their purpose???
Im talking from a LOT of experience, working from stock na cars up to 1000HP monsters. If you do research you will find that for high HP platforms the ultimate problem is keeping temps down. diffrent plugs will burn colder or basic ones will burn a little hotter.
You dont need your car to start easier. if its not starting well then get it checked out, putting expensive plugs in wont change this. It should still start....
Economy is next to nothing, generally people who look at these types of upgrades drive something with a bit of grunt. economy is the leastt of their worries....
Yea they last longer, but at nearly $25 per plug, they would want to last a long time.
The purpose of the plugs is to provide high ignitability. not improve performance or to save on fuel.
You will not gain any benefits whatsoever by using them unless you have a high HP application. then they are essential.
Dont waste your money OP
I don't want to discuss this.
I only changed to the iridium plugs because that is what my car had from the factory, and they were mistakenly replaced by the dealership too early.
I expected NOTHING from the change, but was very surprised to see that I did get an immediate 10-15% increase in fuel economy (I went from 16l/100km to 13.5l/100km in the city overnight with no other changes) This has been consistent ever since (I only travel between work and home in this car)
I have also done some long distance testing, and here also, I saw a similar increase in economy.
Talking of Monster HP applications does not apply here, and I don't care what experience you have. What I say is simple fact, it is not based on something I have read or had some great idea of expecting, but simply based on actual performance discovered.
Why would you not want you car to start easier, or increase your economy if you can ??
Why would you not want to change to a plug that will last you 100.000 to 120.000km instead of 30.000 ?
In regards to your "platform" statement, the plugs listed are the direct equivalent of the iridium plugs listed in the dealer workshop manual.
The price is not that different, the plugs just cost me $75 for a 6 pack.