When to replace spark plugs...

[MustangDave]

All-

I've got a '97 Camry V-6 with about 150K miles on it and am wondering if I should bite the bullett and replace the spark plugs/wires. I've had the car in my possession since 90K and the plugs have not been changed since then....they could even be original plugs, but not sure (my wife had it before 90K and isn't sure if she ever had the plugs changed out). My question is this...even though the car runs fine and still gets 25-26 MPG mixed driving, should I still replace the plugs? The ones in the back would require a the upper intake to come off and if it runs fine, is it worth it?

Thanks in advance!

Dave

PS-If ya'll recommend replacement, how does NGK wires with Denso plugs sound?

[terrastrife]

take out a front one and if it still looks clean it shoudlnt be a problem, sounds like ya cars running fine.

[jhbhatia]

denso platinums and NKG wires will be a welcome relief to your aging car. I replace my plugs every 90K miles. Plug cost is small...the thought of another car payment is what haunting to me. I'd rather try my best to maintain the car i have, then pay for a newer one.