Originally posted by: iamwiz82
I just bought a Toyota two weeks ago. I just get annoyed when people bitch and moan over a maintenance item. Spark plugs go bad, and according to the maintenance schedule I am looking at, they are to be replaced at 30,000 miles. Honda recommends the exact same interval for the Civic.
No, Honda states 100k miles:
Under normal usage, a tune-up is not required until typically more than 100,000 miles (only routine inspections and fluid changes are required up to this point). Credit for this longevity goes to long-wearing iridium spark plugs, a long-life timing chain, and careful engineering of the precisely manufactured SOHC valvetrain-which reliably maintains proper valve tappet clearances until the first tune-up
I replaced mine at 100k and they looked worn but not destroyed. I replaced the old spark plugs with new Iridium plugs and am looking forward to replacing them at 200k.