Why would you need plugs on a new car? The stock plugs are good for at
least 30K miles, perhaps as much as 60K. I just replace the plugs on my
'04 with NGK V-power plugs. They're less than two bucks each and produce
a hotter spark than platinum or iridium plugs. The downside is that they
only last 15-30K miles.
Probably will do 30K this year. Was thinking that changing them
sooner rather than later is better. Also thinking easier to do in
warm weather than cold.
PS. Thanks for the reply Hyundaitech. Now I will probably let them go
until next spring.
On Fri, 30 Jun 2006 11:36:26 GMT, Brian Nystrom
Waste of money. The four electrodes are nothing but a gimmick.
Well, it's either due to the placebo effect or their plugs were really
bad and putting in new ones restored the performance they had lost. ANY
new plug would do that.
I agree with Hyundaitech that NGK and Nippon Denso are excellent plugs.
You still only get one spark on most OEM ignition systems. They're
pretty awesome if you've got a high voltage/current multi-spark ignition
system like an MSD from what I hear.. If you don't have this, the
additional electrodes just block fuel/air flow around the ignition area,
which is a Very Bad Thing (tm).
I tried the Bosch single platinums in my Santa Fe.. I noticed a severe
fuel economy/power loss with regular misfires. Checked to make sure all
the connections were tight - they were... Replaced the plugs and the
problem went away, go figure.
Spark plugs are cheap and easy to swap out, and unless you buy the wrong
length (look it up and double check visually before installation),
seal-type (wedge or washer) or heat range (not every parts store
computer is correct - always check against the plug manufacturer's
application sheet, these can always be found online)
Best plugs I've found so far for the 2.7 are the Champion Truck Plugs.
They're copper so its easy on the ignition electronics, but last as long
as most platinums (I'm at about 55k on these plugs so far on the 01,
still have the same gap, no misfires, no typical champion 'blow-by'
around the ceramic, and no noticable drop in fuel economy)
If you're into the cheezy OEM wire sets arcing-out and blown coil packs,
stick to using the platinum plugs. Otherwise, look for a good copper plug.
I bought 6 plugs at the dealer at $13 each at 60,000 miles, and put them in
my 2002 XG350. A week later I find that a suitable equilivent plug (still
platinum) is available for around $2.00 each at the auto parts store. I
bought a set and repalaced the front three (the easy three) and have been
driving that way for almost 30,000 miles now. I can't tell the difference.
I won't know for another 30,000 how they look compared to the expensive
ones, but I suspect they will look about the same. Check out your local
auto store before spending $80 on a set of plugs.
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