I'm not really sure when these were changed but I think I had someone do it like 3-4 yrs ago. Does anyone think these need to be changed because of wear or upgraded to the ngk iranium ? I think these are ngk platinum. I have a 2002 acura tls THX

 

looks pretty good!
the ceramic isnt a funny color, it's still white, and the gap doesnt look like its bent out of shape.
the threads look pretty normal.

if you're hurting for $$ i would leave them in there for a bit.
if you dont mind changing them, grab another set of NGK iridiums

 

theres two sets of torque values; with anti-seize and without.
make sure you apply the proper torque value whichever route you go, anti-seize or not.

 

replace it just because you took it out. The crush washer looks wavy

 

I know the non antiseize is 156inlbs or 13ftlbs, but what is the antiseize torque values? I just figured that I had to make up for the fact that I would be installing with it on skipping the first two threads.

 

What do you mean grab another set? I bought six. They were pregapped at .04 which is what my manual says is correct. Most forums that I looked at said to gap them at .44. Since I didn't read my manual until my mechanic friend said do not ever gap these plugs unless its absolutely necessary, I gapped them to .44. I think Ill just return them and put the money elsewhere in the car.

 

as in, your replacement set.
which you have, so you're good to go.

 

I ALSO READ THAT these type of spark plugs do not need to be replace until 7 yrs or 82,000 miles. Is this correct?
The ones that are in my car are the ngk ZFR5FGP G power spark plug. Amazon says they are not a fit for my car? Should I upgrade to the iridiums? If so, how much better would they be?

 

I have the iridiums and can`t say a bad thing about them. On now for 60,000 miles. Car has started up nice in our cold winters.

 

the iridium's are the stock plug!
however; i dont think you can tell a difference between plugs...

the only difference would be when to change them, as one isnt made with iridium and therefore wouldnt last as long.

i believe the iridiums are supposed to last for 105k miles.
you can buy cheaper plugs, but you would need to change them sooner

 

That plug looks good from the pic to me but it's better if seen in person. So look at it yourself, are the lines on the spark plug sharp and crisp? If so then its still good for sure.

The best guide is to go by the acura plug service interval.

Platinum plug will go about 100k miles.

Iredium plugs will go about 130k miles.

Like I said "Best to follow oem recommendation" bc they've tested it along with the plug maufacturer's input.

Important to use the correct plug that's recommend by acura.

Wrong plug will run too hot or too cool. Lost in mpg or worse case scenario pre-ignition/knocking. Which can lead to burt valves/engine damage.