NGK TR55 lifespan?how many miles?

[01PewterDropTop]

I put 121k miles on the stock plugs and have NGK Tr55s going in. i was woundering about how many miles i could pull out of thies?atleast 30k i hope.

[Shodown]

Re: NGK TR55 lifespan?how many miles?

Yeah, I'd change'em around 30-35K.

[BLLDOGG]

Re: NGK TR55 lifespan?how many miles?

i have atleast 20K on mine with no problems yet

[homedog119]

Re: NGK TR55 lifespan?how many miles?

I put 121k miles on the stock plugs and have NGK Tr55s going in. i was woundering about how many miles i could pull out of thies?atleast 30k i hope.

you might be changing the engine before the plugs

[StrtRacer98]

Re: NGK TR55 lifespan?how many miles?

i changed my plugs and wires at 115k.
they were stock, wires and plugs.

i replaced them with NGK TR-55's even though there was no problem with my plugs/wires i wanted to get new.

GM rocks!

[zlexiss]

Re: NGK TR55 lifespan?how many miles?

I've been going about 60k on my TR-55's, no problems yet that I notice.

Yeah, I have a new set and should change them out, but I've been lazy and crippled lately.