My 2000 TL has 111,000 miles on it and runs fine to me but my friend says I should get new spark plugs. His TL has 75,000 miles and he says after getting new plugs he noticed a big difference. I dont feel my car missing or popping when I pick up speed but does that matter? I dont want toi pay for plugs if i will not notice an improvement. Should I change them? Thanks all

 

i had about110k before i changed mine. the only thing i noticed from changing them was a slightly smoother idle. if you are going to change them only replace them with NGK iridium or denso iridium. those are the only types you should use

 

I took out and checked the fron spark plugs and they looked okay just a bit of redish brown on the white part. My car has 112,400 miles now. Will I notice any difference with new ones? My car gets about 250 to 270 miles per tank of gas. My car runs smooth with no misses but 112,400 is alot of miles

 

oh btw my tips on my spark plugs were pointy. is that okay?

 

it wouldnt hurt to replace them with that many miles on them. i noticed a difference with mine after doing it at a little over 100k