NGK Spark Plugs
Discussion
I changed to the Iridium NGKs on my Lancia with noticeable improvement when cold. NGK claim a wider heat range for the Iridium plugs. They have a narrow center pin which would be less prone to fouling. It is probably more of an issue with carburetted cars.
We have crappy high octane unleaded in NZ. Illegal in most countries due to its aromatic & benzine levels. Its not very volatile so cold running is a problem. Some of our vehicles have to run in the winter setting all year.
We have crappy high octane unleaded in NZ. Illegal in most countries due to its aromatic & benzine levels. Its not very volatile so cold running is a problem. Some of our vehicles have to run in the winter setting all year.
Hi,
Stay w/ the standard plugs. Iridium plugs are unproven to offer any benefit and most testimonials are anecdotal at best.
With the ECU being as sensitive to plugs as it is, you'll either have several miles of cr*ppy driving as it relearns, or it won't sense a difference significant to alter it's function and so no benefit will be received.
It's a false economy to add plugs to these cars simply because they may last longer. You don't want your plugs in there that long. They are a good indicator of overall engine health and should be pulled and checked regularly anyway, so why not swap in a fresh set when you do? A set is so cheap as to be almost laughable.
In fact, plugs are so cheap for these cars, that one can easily change them at the oil change intervals and ensure the car is in top form. A new standard NGK plug every 3,000 miles or so is much better than a set of Iridiums running for 25k-30k miles. Happy Motoring! Jim'85TE
Stay w/ the standard plugs. Iridium plugs are unproven to offer any benefit and most testimonials are anecdotal at best.
With the ECU being as sensitive to plugs as it is, you'll either have several miles of cr*ppy driving as it relearns, or it won't sense a difference significant to alter it's function and so no benefit will be received.
It's a false economy to add plugs to these cars simply because they may last longer. You don't want your plugs in there that long. They are a good indicator of overall engine health and should be pulled and checked regularly anyway, so why not swap in a fresh set when you do? A set is so cheap as to be almost laughable.
In fact, plugs are so cheap for these cars, that one can easily change them at the oil change intervals and ensure the car is in top form. A new standard NGK plug every 3,000 miles or so is much better than a set of Iridiums running for 25k-30k miles. Happy Motoring! Jim'85TE
Calvin said:
Whatever plug you end up using they do not last too long anyways.
Not necessarily true. I just replaced my spark plugs 2 days ago. Not that I would recommend anyone else do this, but the current set was in the car for over 31,000 miles. When I removed them they still looked almost new. I haven't noticed any performance improvement with the new plugs.
BTW: As usual I bought the NGK BPR6EKN plugs from Advance Discount Auto Parts here in Florida. They had to order them from the warehouse but they had them in the store later the very same day (special deliveries are made twice a day). The plugs were about $3.50US each. The most amazing part is that I was able to specify that the plugs were for a 95MY Esprit S4s and they had all model years of Esprit listed on there computer.
Karl,
Did they really last that long?
Mine were okay for regular driving but it had a miss or 2 at high r's. I change mine every year after I take it of storage after it's yearly slumber. Keen has mentioned that other plugs other than the NGK's do not last long (2-3K miles) At least the NGK's go for about 10-12K in mine.
Calvin
Did they really last that long?
Mine were okay for regular driving but it had a miss or 2 at high r's. I change mine every year after I take it of storage after it's yearly slumber. Keen has mentioned that other plugs other than the NGK's do not last long (2-3K miles) At least the NGK's go for about 10-12K in mine.
Calvin
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