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TR2/3/3A NGK Iridium Spark Plugs BPR6HIX on Amazon for $103.17 ???

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K

karls59tr

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I have been using the BPR5HS with success. These Iridium plugs look kind of pricey? Has anyone tried them? Is there really that much of a difference from a more standard plug? Enquiring minds want to know. :smile:
 
I have no idea where your getting your price from, but NGKs Iridium's are around 7 to $12.00 each. PJ
 
PAUL161 said:
I have no idea where your getting your price from, but NGKs Iridium's are around 7 to $12.00 each. PJ
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I know. The pricing is extreme. I saw this on amazon.ca. I thought this must be some kind of new high tech Iridium spark plug that was a new advancement in spark plugs for NGK or maybe Amazon to sell them at such a high price?????
 
NutmegCT said:
Several years ago I learned that ridiculously high online prices allow money laundering.

Just sayin'
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Talk about getting taken to the cleaners.
 
Hi, Rockauto sells them for $5.95 each. Its a great plug, they last forever. I use them on my TR-3a, Truck, Subaru Forester and Jet ski.

Roy
 
Beware of buying spark plugs on Amazon, counterfeit plugs are almost the norm there. Only buy from trusted places like RockAuto, bigbox auto parts and manufacture's websites. Counterfeit plugs are a huge problem worldwide. $100 for 4 plugs is a big red flag.
 
I buy my plugs, plus other stuff from my local NAPA.
 
I did a deep dive into plug materials and technology a while back before I replaced my plugs on my TR250, cause those iridium things seemed a little spendy to me.

Anyway, my research showed that copper is a much better conductor than platinum and a better conductor than iridium. The primary benefits of the more exotic materials is that they maintain consistent gap much longer, so they have a much longer service life.

If you have tried to change a plug on a modern car you know why that is important. On my Lexus you have to remove the plastic engine cover, then the intake manifold, which is more than just loosening a couple bolts, then the coil packs that cover the plugs.

Anyway, on a TR that operation is a little simpler.

If you think in terms of do I want a plug that lasts 100,000 miles or I want one that fires even if for some reason like I didn't bow to the Lord Lucas correctly this week and I have marginal voltage today, I would pick the plug more likely to fire in marginal conditions (when in spec, but most of our cars are low mileage and as noted, copper plugs are cheap and easy to change).
 
glemon said:
I did a deep dive into plug materials and technology a while back before I replaced my plugs on my TR250, cause those iridium things seemed a little spendy to me.

Anyway, my research showed that copper is a much better conductor than platinum and a better conductor than iridium. The primary benefits of the more exotic materials is that they maintain consistent gap much longer, so they have a much longer service life.

If you have tried to change a plug on a modern car you know why that is important. On my Lexus you have to remove the plastic engine cover, then the intake manifold, which is more than just loosening a couple bolts, then the coil packs that cover the plugs.

Anyway, on a TR that operation is a little simpler.

If you think in terms of do I want a plug that lasts 100,000 miles or I want one that fires even if for some reason like I didn't bow to the Lord Lucas correctly this week and I have marginal voltage today, I would pick the plug more likely to fire in marginal conditions (when in spec, but most of our cars are low mileage and as noted, copper plugs are cheap and easy to change).
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Good research on the various plug materials.I have bee having good luck using the NGK BPRH5 plugs. I agree. I don't think the TR3 really needs the iridium or platinum plugs.
 
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