Spark Plugs

[socalgs4]

hello my friends-

because most of you are pretty knowlegeable when it comes to engine maintenance, i would like to ask some questions in that regard.

how often should spark plugs get replaced on a 2000 GS400?

and is there a more robust after market spark plugs that i should consider?

thanks in advance

socalgs4

[dcfish]

change the plugs every 60,000 even if they are iridium plugs , and i would advise replacing with nippon denso only there isn't a better plug :D :D :D

[bbsal]

at least every 50 to 60,000 miles.platnium bosh isnt that bad either.

[TRIMENT]

I specially like the Bosch platinum +4 , but iridium is also good. I've heard that 100k is possible with these, as long as you use a fuel additive to keep plugs carbon free. I use Amsoil PI gas additive PI stands for performance improver, it makes a difference even in extra MPG's. :)