plantinum spark plugs

[Guest]

Platinum Spark plugs, are they worth the money? Can they cause detonation as well as preignition?
Will

[Steve]

With no other changes, platinum plugs will not cause anything.

My former van called for platinum plugs because they were so hard to get to, and only required replacement every 100,000 miles. My new van calls for Iridium plugs, have not yet seen what the replacement interval is.

Back to bikes, there are claims that the bike might start easier with platinum plugs, but my bikes start so easily now, if I made it any easier, it would already be running by the time I put the key in the ignition.

Personally, I don't think they will make the bike run any better than any other new plug. They might last longer, but I don't know very many people that keep their bikes long enough to find out how long they do last.

Also, it's hard to beat the feeling of walking into a parts store, dropping a $10 bill on the counter and walking out with four new plugs and change.

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[earlfor]

Not worth the money. No gain in any area except replacement interval and stock NGK plugs for $2 bucks are good for 20K miles anyhow.

Earl

[Nessism]

I don't know about 20k out of a stock NGK. The do last a good while though.

[7981GS]

Cost 30% more than the standard plugs and last twice as long... (at least)

Daniel

[Steve]

Last May, I replaced the plugs that were in Mrs. Steve's bike, but only because I was doing a bunch of other work.

They had been in there for about 24,000 miles and I would have left them in there for more.

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