Iridium spark plugs: worth it?
#1
Iridium spark plugs: worth it?
Starting with two premises: 1) the recommended interval for plug inspection/replacement is 30K miles, and 2) you have to remove the A/C compressor to access four front sparkplugs, the question is...
NGK make an Iridium electrode plug that is quite spendy at $18 each, but are guaranteed for 100K miles. Their standard plugs are around $4 each.
My A/C compressor needs replacement, so it's a good time to do the plugs as well.
At today's labor costs, assuming the A/C compressor has to come off every 30K miles to get to the plugs, isn't it money ahead to go with the iridium plugs?
Or, is this snake oil?
Thanks,
Lou
NGK make an Iridium electrode plug that is quite spendy at $18 each, but are guaranteed for 100K miles. Their standard plugs are around $4 each.
My A/C compressor needs replacement, so it's a good time to do the plugs as well.
At today's labor costs, assuming the A/C compressor has to come off every 30K miles to get to the plugs, isn't it money ahead to go with the iridium plugs?
Or, is this snake oil?
Thanks,
Lou
#3
Starting with two premises: 1) the recommended interval for plug inspection/replacement is 30K miles, and 2) you have to remove the A/C compressor to access four front sparkplugs, the question is...
NGK make an Iridium electrode plug that is quite spendy at $18 each, but are guaranteed for 100K miles. Their standard plugs are around $4 each.
My A/C compressor needs replacement, so it's a good time to do the plugs as well.
At today's labor costs, assuming the A/C compressor has to come off every 30K miles to get to the plugs, isn't it money ahead to go with the iridium plugs?
Or, is this snake oil?
Thanks,
Lou
NGK make an Iridium electrode plug that is quite spendy at $18 each, but are guaranteed for 100K miles. Their standard plugs are around $4 each.
My A/C compressor needs replacement, so it's a good time to do the plugs as well.
At today's labor costs, assuming the A/C compressor has to come off every 30K miles to get to the plugs, isn't it money ahead to go with the iridium plugs?
Or, is this snake oil?
Thanks,
Lou
Les
88 1/2XJ-S
#4
It depends on the engine. If it's old Lucas style ignition, no. Old British cars and lawn mowers love Champion plugs.
http://www.motorcarsltd.com/RS9YC.html
Marrelli ignition cars take NGK:
http://www.motorcarsltd.com/EAC8554.html
The 6 cylinder models use a different Champion number:
http://www.motorcarsltd.com/EBC8143.html
No reason to over spend.
http://www.motorcarsltd.com/RS9YC.html
Marrelli ignition cars take NGK:
http://www.motorcarsltd.com/EAC8554.html
The 6 cylinder models use a different Champion number:
http://www.motorcarsltd.com/EBC8143.html
No reason to over spend.
#5
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