How often do you change plugs?
Burning Brakes
Joined: Feb 2004
Posts: 1,231
Likes: 0
From: edmonton ab
http://forums.corvetteforum.com/show...ht=change+plug
The platinums are supposed to be good for 60,000 to 100,000 miles on all late model cars. Having said that I did change the plugs in my 97 Malibu at 60,000 because the gap had already burnt up to .060". Granted the "Bu" has a Mexican toilet for a motor but the stock Delcos are a platinum plug as well. I know from reading other posts that some people on this board will change the plugs every 15k which is really a throwback to the old shorter lifespan copper plugs. I personally would probably change them at 60k, but that is just me.
The platinums are supposed to be good for 60,000 to 100,000 miles on all late model cars. Having said that I did change the plugs in my 97 Malibu at 60,000 because the gap had already burnt up to .060". Granted the "Bu" has a Mexican toilet for a motor but the stock Delcos are a platinum plug as well. I know from reading other posts that some people on this board will change the plugs every 15k which is really a throwback to the old shorter lifespan copper plugs. I personally would probably change them at 60k, but that is just me.
Safety Car
Joined: Oct 2000
Posts: 4,949
Likes: 10
From: Monticello MN
Originally Posted by 99torchredlb
What spark plugs do you recommend for by vette 99 FRC with mods?
Ed
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
Delco 41-985 Iridiums. They even come pre-gapped at the recommended .040 (but check them when you buy).
Plus, the Iridiums like the stock wires too
Drifting
Joined: Jan 2001
Posts: 1,347
Likes: 4
From: Slidell La
Plugs
I changed plugs at 50,000 and found the platnium tips burned off of 3 of the plugs. The car still ran ok, but gap was way off on the burned plugs. My 99 came with "new" NGKTR55IX Corvette plug
41952 ngk 2885. I purchased the car at 2 miles on it and I took out the factory plugs. I would not run pass 50,000. My driving is "normal?" for a vet. 99 Nassau Blue.
41952 ngk 2885. I purchased the car at 2 miles on it and I took out the factory plugs. I would not run pass 50,000. My driving is "normal?" for a vet. 99 Nassau Blue.
Le Mans Master
Joined: Nov 2000
Posts: 6,266
Likes: 156
From: Galloway Twp. NJ
Cruise-In VII Veteran
I'm using NGK TR-55 copper plugs.
I change them every 2 years, which would be about 6000 miles.
at $1.20ea, I'll change them every year if I feel it needs it.
I think the rule of thumb seems to be, copper plugs for performance and platinum plugs for longer plug life.
the iridiums seem to be the "best of both worlds".
I change them every 2 years, which would be about 6000 miles.
at $1.20ea, I'll change them every year if I feel it needs it.
I think the rule of thumb seems to be, copper plugs for performance and platinum plugs for longer plug life.
the iridiums seem to be the "best of both worlds".
Last edited by RPOZ4Z; Feb 22, 2005 at 09:22 PM.
Safety Car
Joined: May 2000
Posts: 4,827
Likes: 352
From: Albuquerque NM
I changed mine at 20,000 miles, the pucks were gone on ALL of them, the gap had opened to 70 thousands. 
I put in NGK TR-55's. They work well, inexpensive, and it's an easy job to replace them every year or so.
I put in NGK TR-55's. They work well, inexpensive, and it's an easy job to replace them every year or so.
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Burning Brakes
Joined: Apr 2004
Posts: 908
Likes: 0
From: Ponchatoula la.
Originally Posted by RPOZ4Z
I'm using NGK TR-55 copper plugs.
I change them every 2 years, which would be about 6000 miles.
at $1.20ea, I'll change them every year if I feel it needs it.
I think the rule of thumb seems to be, copper plugs for performance and platinum plugs for longer plug life.
the iridiums seem to be the "best of both worlds".
I change them every 2 years, which would be about 6000 miles.
at $1.20ea, I'll change them every year if I feel it needs it.
I think the rule of thumb seems to be, copper plugs for performance and platinum plugs for longer plug life.
the iridiums seem to be the "best of both worlds".
Safety Car
Joined: May 2000
Posts: 4,827
Likes: 352
From: Albuquerque NM
[QUOTE=2KREDVert]
Don't know, whatever the factory used in 2000.
Originally Posted by 6Speeder
I changed mine at 20,000 miles, the pucks were gone on ALL of them, the gap had opened to 70 thousands.
Which plugs were these?
Which plugs were these?
Don't know, whatever the factory used in 2000.
