Why would anyone want to pay $1 more per plug and $7.50-$31 shipping on top of that? To avoid sales tax, LOL. I'll just go to the parts store and order them.

BTW, the P/N for the irridium version of the "extended reach" plugs is ZFR5FIX-11.

 

Remember that not every auto parts store carries NGK or Denso plugs. And, of the ones that do, they won't stock every part number (usually just a selection of the most popular ones). Just don't expect to waltz into Walmart and come out with a set of good quality spark plugs! But, if you live near a Murray's or Napa, you may just be in luck...

 

Yeah but every dealer should, or should be able to order them easily. I just walked in, told them the part number and walked out 5 bucks poorer.

 

Playboy, eh???? I do need a date for Penn State's homecoming, think you can hook me up?

 

Autozone had the Bosch platinums... No too expensive either...

 

Napa, O'reilys, and CarQuest all have a warehouse distribution center nearby. Guess I'm spoiled, between the three I usually don't have a problem rounding up parts. O'reilys usually cost a bit less. 5.99 for NGK IX.

 

Not too expensive, but still a waste of money. Buy the NGK plugs.

 

So are the NGK-ZRF5-11 the stock OEM plugs for these cars? Are there a "non" long reach version?
Thanks.

 

all the plugs are about the same, but I did dyno runs of ngk vs. bosch, the results were surprising, but so minor that it really wouldnt matter unless you were really going to fight for 1 whp in your upper and lower powerbands.

Nothing is a waste of money if you have the money lol

but if you dont then stick with stock.

 

I have the Bosch Platinums +2 in there now and they are ok but i think they are whats causing my engine knocking... So i might just get the stock NGK's.

 

Get rid of those plugs. That's the problem.
NGK copper plugs are best suited for what we've got. Anything else is throwing money away IMO.

 

Hey I'm new to the forum. Recently I had a few probs with the spark plugs in my 2001 Protege 5. I replaced them with Bosch platinum plugs in Dec 2005. About a month ago I had to have them changed back to NGK's. The mechanic said they were heating to hot. He went ahead and replaced them. I drove away from that place and less than a mile away the check engine light came on again. Anyhow, I ended up taking it to the dealership and they replaced the ignition coils cuz they said they were bad on cylinders 2 & 4. Was it a bad idea to put the platinum plugs in and would this have caused the coils to go bad?

Oh and NOW....I have another check engine light and the dealership is telling me I need to replace the catalytic converter.

 

even if you are a beginner does not necessarily change the spark plugs on the service. I changed the spark with this video tutorial link

 

Every 10,000km should service your vehicles depending on use also.i prefer every 6000Km.i no of many other mechanics & back yard mechanics change before the recommended 10,000km

 

Whenever i purchase a new or second hand vehicle I personally service & replace with new & fluids,ex:brake,coolant, transmission ECT.