Dear god. none of you sound like you know what your doing.
The Bosch HR 78 NX spark plug is a super 4 plug that has 4 outer ground electrodes and uses surface air gap technology.
There is no need to mess about gapping the plugs as they are Factory pre-gapped electrodes.
So don't mess about gapping your super 4 Bosch, Just fit them.
SOURCE: what is the spark plug gap for a 2004 ford taurus
Hello, go to www.autozone.com and put your car in the "manage my vehicles" tab and then click on the "Repair info" tab and click on the links to get just about any info you need. If you need help just ask. Good luck.
SOURCE: what are the spark plug settings for a 1.8 zetec engine
you can set the gap by using the new spark plug casing papar thikness.try it and it will work
SOURCE: spark plug gap ford explorer 4.0 6cylinder
Our 2003 Explorer V6 requires:
0.052 - 0.056" plug gap
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