2007-12-07 09:28:20 · 6 answers · asked by o_scarchavez 2 in Cars & Transportation ➔ Maintenance & Repairs
there supposed to be good for 100,000 miles.
2007-12-07 11:37:53 · answer #1 · answered by mister ss 7 · 1⤊ 0⤋
You didn't mention what kind of car you are driving. Platinum spark plugs, depending on the manufacturer, should last for 100,000 miles, but it depends in ehat car they're in..Believe it or not, some manufacturers of Platinum plugs are better thatn others.The only thing that tends to cuase problems is if the charging system has failed somewhere and been repaired (causing a voltage drop). This will prematurely wear a platinum and cause it to need replacing sooner.
2007-12-07 17:55:31 · answer #2 · answered by Robert M 7 · 1⤊ 0⤋
They should last for 100,000 miles.
2007-12-07 17:34:07 · answer #3 · answered by cfb193 5 · 1⤊ 0⤋
lol, every 40k would be a BIG waste of money and time. change them at around 60-80k.
2007-12-07 17:56:32 · answer #4 · answered by Big Carp 4 · 1⤊ 1⤋
90-100K miles is what my manual recommends.
2007-12-07 17:52:40 · answer #5 · answered by cimra 7 · 1⤊ 0⤋
if you care about you car and want to get the best performance out of it you should change them every 40,000 miles.
2007-12-07 17:41:26 · answer #6 · answered by cartucho135 2 · 0⤊ 3⤋