Spark plug replacement

Sep 26, 2022 Last reply: 3 years ago 4 Replies

Recommended at 60,000 miles but I read that my wife's 2008 Forester has iridium plugs and hear they can go over 80,000 miles. Should I do it on her next service coming up? Older we do not drive much or far.


Our '03 Outback had 'double platinum' and the schedule said to change them at 60K. I did and they looked great. Others have also reported that the plugs look good at the scheduled time. I SHOULD have waited, and done valve cover gaskets and plugs simultaneously. I think there's certainly no hurry. Consider doing them and VC gaskets.

That's what I figured. I hope to delay replacement as dealer will probably recommend doing everything which could cost a bundle.

a 7 year-old car wouldn't NEED to have typical work done at a dealership. Try to find a subaru-friendly independent mech near your city.

Yes, I had done this when car out of warranty but prices the same and they always tried to up sell too.

It is her choice but I will try to talk her into delaying new spark plugs.

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