spark plugs?
 

hey guys, i was wondering if you could tell me how often to change out the spark plugs and a reccemended brand of plugs to buy.

thanks ahead of time.

Stick with the OEM NGK plugs, or some use RX-7 plugs which are cheaper but I believe you need extra washers to prevent damage. I'd rather pay a few extra bucks to avoid that issue and besides the RX-7 plugs will need more frequent replacement. You can find the OEM plugs for significantly less than what the dealership charges.

Change them when they need to be changed, or 35,000 miles whichever comes first. Depends on your car and how its driven. Some have gone past 40,000 miles on original plugs. Some change at 10-15,000. If engine is running fine leave them alone until the 35,000. If you have roughness or a recent flooding event a change may be warranted. If you want to keep tabs on how your engine is performing, learn to "read" the plugs and take them out for a visual inspection every so often (say 10,000 mile intervals or if there is a change in performance).

i have rx7 plugs on mine...the only thing is that your gonna need a 2mm washer for both of the trailing plugs

plus the 7 plugs won't last as long.

thats all you can wait for...unless you take a look for yourself, pop em out and if theyre black they need to be replaced

sorry, deleted my post after re-reading Nubo's post and determining it already answered my question :D:

where are they located? haha sorry man i'm new at this stuff

hey roachboy: The answer you seek is actually found in a few different places.
1) I highly recommend you read the owner's manual for our car. Trust me, most manuals are absolute JUNK, this one is the exception. Tons of useful info in there regarding this car.

IF you don't have a copy of the owner's manual, you can go to www.mazdausa.com and register under the owner's section. You'll need to enter your VIN and you can download a PDF version of the manual. (the site also alerts you of open recalls, lets you track maintenance records, etc)

Now, since I'm in a good mood I'll give you the answer. :)
Jack up the front left side of the car, remove tire, straight back are the spark plugs. There will be 2 per rotor.
If you have an extension for your ratchet and a swivel socket you can ge to them fairly easily.

Also, check the DIY subforum, there's a thread on changing out the plugs.

dont listen to jedi...and PLEASE dont look at his postcount that guy KNOWS NOTHING

:rofl:

haha ok thanks. have you heard of those denso iridium spark plugs? i heard a couple good things about them and heard they were better but idk. my car is in the shop right now and i was asking about the spark plugs because my car has 45 k miles on it and the dumbasses in the shop flooded my engine and i was thinking that i might otta get some new ones.

Search really is invaluable. A recent offer:

https://www.rx8club.com/showthread.p...ht=Spark+Plugs

NGKs are your best bet

stock NGK's are typically the best solution for non-turbo RX-8's

stock NGK's are perfect unless ur running Nitrous, tubo, S/C then a colder plug is needed/recommended but I don't think u doing any of that now!

I haven't heard anything good about the Denso plugs.