Originally Posted By: LotI
Originally Posted By: Tegger
"Laser" plugs are better: BOTH electrodes have iridium. "IX" plugs are cheaper because only the positive electrode is iridium.
Lasers are rated for 100,000 miles. IX's are rated for 30,000 miles.
NGK markets the IX's as a "performance enthusiast" plug as compared to a
regular plug, not as compared to a
Laser.
Not according to NGK on both counts.
FAQ
Laser
IX
According to their part finder, there is not a "laser" for my application..2005 MINI S, only IX. For my 2004 Rainier with the I6, they are both available. Check the application guide for your car.
The frickin' "laser" is for an OEM application? The square ground electrode lets the OEM say they'll last 100k? The IX has a tapered ground electrode.
YMMV. The NGK Iridium IX does not have the platinum pad on the ground electrode - look thru all of the marketing literature and you will find that to be the sole difference between the NGK OE Laser plugs and the Iridium IX.