When to change plugs?
#1
When to change plugs?
I have a 2013 F-150 5.0 V8 with 84,000 miles. Still, have original spark plugs. When should I change them?
runs fine now. Should I wait until they burn out?
Thanks,
runs fine now. Should I wait until they burn out?
Thanks,
#2
Senior Member
I'd go ahead and change them now. Always better to do it when your truck is still running than to do it when it isn't. (Normally, spark plugs get changed around 100,000 miles)
#3
Senior Member
Right from the owners manual: Every 100000 miles or (160000 km) - Replace spark plugs, Inspect accessory drive belt(s) and Change engine coolant.
But there's nothing wrong with doing those early since every vehicle is driven differently and in different conditions.
But there's nothing wrong with doing those early since every vehicle is driven differently and in different conditions.
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Pacific Fisher (05-21-2019)
#5
100k miles, no need to waste money when not needed.
All plugs I’ve changed at 100k were still good with only re-gapping needed.
If it ain’t broke, don’t fix it.
All plugs I’ve changed at 100k were still good with only re-gapping needed.
If it ain’t broke, don’t fix it.
Last edited by Lee308; 05-21-2019 at 08:28 PM.
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13XLTEco (06-05-2019),
chuck long (05-04-2022)
#6
Captain of Industry
The maintenance recommendation is 100,000 miles, but some of us with the Ecoboost engines have experience significant plug fouling before then. If that happens, you'll know it, because you'll start getting misfires under heavy load or acceleration. I changed my first set of plugs at about 80,000 miles, and just did it again at about 160,000. If you're not experiencing any problems, you can wait until the recommended mileage.
#7
I've changed mine at 50k, with 30k worth of tune and they looked OK if I recall. Changed again at 100k and the driver side I had to work them back and forth for fear of galling. I plan on chagning every 50k just so they don't sieze up. But I've also changed my tranny fluid at 60k and 100k. I don't care what the owners manual says, after 60k (actually 20k) my truck wasn't a liability to them anymore and I choose basic preventive maintance over what ford says when it on my dime.
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FXtreme5.0 (05-22-2019)
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#8
Senior Member
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antony1103 (05-22-2019)
#9
Re-Gapping a modern day Platinum or Iridium tipped spark plug is NOT recommended by any Manufacturer
No need to change them before then.