For vehicles that demand the longest service life and continuous performance, Bosch recommends fitting Double Platinum spark plugs.
Bosch Double Platinum spark plugs feature a pure platinum centre electrode and a ground electrode laser alloyed with pure platinum. The result is an outstanding service life, even in vehicles with forced induction systems
The Double Platinum advantages at a glance:
Ground electrode with laser-welded platinum inlay for outstanding service life
360° continuous laser welding to fuse the platinum firing pin in the centre electrode
Ribbed insulator design to prevent misfires due to flash-over
Nickel-plated shell with rolled threads to provide complete anti-seize and corrosion protection