iridium spark plugs? make a difference?

[Luke-vts]

looking at getting some new plugs is it worth the extra money for the iridium ones? (standard are about £10, iridium £30!)

[olly-bay]

may have this wrong but only worth it with a highly tuned cars making them work hard to ensure a good spark for full burn of the mixture every time, for little tuning or standard cars standard ngk or champion will be fine

[Sparco_Tom]

Standard plugs are best

[Kev_Vtec]

was a thread on the bmw fourm about this.
Standard plugs are best.
iridium is good for modified engines.
also been told unipart plugs are the same as ngk aka made by ngk, just got unipart name on.

[stevo67]

As said standard 1`s best on normal road going car,fwiw I recently got some NGK 1`s off ebay £9.71 delivered the same ones in Halfords price £17.00.

Steve.

[JamesRm]

No they don't. Just last longer - Go for NGKs, Bosch 4s, Splitfires etc

[KamRacing]

Just go for some standard NGK's and save yourself a lot of money

[TU-Tuning]

NGKs all the way. Theyre around £1.80 each (non-trade) at a decent motorfactors too

[crpt2008]

My 2 cents on another old thread.
For me iridium all the way. 4 cars in the household, 2 of them don't have iridium plugs, because...they're diesel.
Denso iridium on both the Citroen and the Peugeot.

NGK iridium on the 2 stroke/2 cylinder outboard and 50cc 2 stroke moped.
Snowblower and the 4 stroke outboard still have "normal" plugs until they're due for replacement.
Easier start, much SMOOTH running, the longer life span is also very welcomed.
As it is the lower emissions/smoke, wider plug gap, less carbon/fouling (quite evident specially on the 2 strokes).
Quite honestly beside the higher price, I'm still to find a problem versus the other counterparts. Believe me in the last >30 years I tried from the Lodge Golden (any one remember that!?) to 2x, 3x, 4x poles, platinum etc.
Be well