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Should I change my plugs?

676 Views 3 Replies 4 Participants Last post by  BuddhaT
I know that the suggested interval is 100K but my car is almost 9 years old with just a little over 50K on the odometer and I was questioning whether a spark plug change would be in order due to its age? The car starts without a hiccup each and every time it's turned over and there is never anything unusual coming out of the exhaust pipe.

While we're on the subject, are there any age specific, not mileage, repairs or maintenance that should check out or be concerned with? I already change my air and cabin filters long before due and I'm changing the oil in this thing about every 5k-6k (even though I know it's not necessary. The radiator was just flushed and the power steering fluid was changed out. Nothing seems to be leaking and the seals around all the suspension parts appear intact.

I know the answer is probably going to be, if it works, don't fix it. But sorry, I just had to ask.
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The spark plugs will be OK as long as you occasionally exercise the engine, go on an occasional road trip, use a TopTier (Google it) gasoline, and don't pour snake oils into the gas tank. After 100,000, exchange them with the correct part number AC Delco (DENSO) double platinum plugs that are in the engine right now.

P/S fluid, brake fluid, coolant all require periodic exchanges. Transmission fluid goes by the transmission OLM or 100,000 miles, whichever occurs first - as long as the fluid is red and sweet, don't mess with it. It's a dry sump transmission - no fluid on the stick with the engine off. Check with the engine hot (10 mile drive), engine idling in P on a flat surface.
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