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1999 jaguar xj8 4.0 motor spark plug

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Old 06-20-2014, 10:33 PM
timsalyer's Avatar
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Default 1999 jaguar xj8 4.0 motor spark plug
my 1999 jag VP has autolite APP 3924 spark plugs. Is this the correct plug for the motor and what should the gap setting be? Will take suggestions on a better plug and gap setting for a different plug
 
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Old 06-21-2014, 09:45 AM
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The engine was originally equipped with NGK double platinum spark plugs.
The scheduled replacement interval is 100,000 miles for Normally Aspirated engines.

bob gauff
 
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Old 06-22-2014, 07:53 AM
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Originally Posted by timsalyer
my 1999 jag VP has autolite APP 3924 spark plugs. Is this the correct plug for the motor and what should the gap setting be? Will take suggestions on a better plug and gap setting for a different plug
Read my recent post for ....2002 VDP N/A Spark Plugs?
NGK is the original and the best plug for this engine bar none ;o]
 
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