2016 F-150 5.0 Spark Plug Replacement
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Mountain Pass
Joined: Jan 2010
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2016 F-150 5.0 Spark Plug Replacement
Greetings,
I am about to replace the spark plugs on my 2016 F-150 XLT 5.0. It has about 61,500 miles on it and as far as I know the plugs have never been changed. Haven't owned it long, and the CARFAX doesn't reflect a spark plug change, although the prior owner had it serviced regularly at the place he bought it from. The Owners Manual say 100,00, but I think that's a good bit too long. Probably see gas mileage suffering way before then, although right now the truck runs fine, but maybe already getting less than optimal MPG. I plan to buy the plugs below from Amazon of about $100.00. Copied this directly from Amazon. I looked at a u-tube clip or two, and the job doesn't look to be too much of a hassle. Any suggestions or recommendations based on your experience? Thanks in advance.
I am about to replace the spark plugs on my 2016 F-150 XLT 5.0. It has about 61,500 miles on it and as far as I know the plugs have never been changed. Haven't owned it long, and the CARFAX doesn't reflect a spark plug change, although the prior owner had it serviced regularly at the place he bought it from. The Owners Manual say 100,00, but I think that's a good bit too long. Probably see gas mileage suffering way before then, although right now the truck runs fine, but maybe already getting less than optimal MPG. I plan to buy the plugs below from Amazon of about $100.00. Copied this directly from Amazon. I looked at a u-tube clip or two, and the job doesn't look to be too much of a hassle. Any suggestions or recommendations based on your experience? Thanks in advance.
New Motorcraft SP547 Spark Plug (8 PACK) Finewire Platinum
Moderator
Joined: May 2005
Posts: 8,194
Likes: 1,215
From: San Antonio, TX
Don't buy from Amazon. So many posts online about counterfeit Motorcraft parts. I won't buy anything from them actually, for many more reasons than just that. Anyway, buy from an actual Ford dealer, or a reputable parts dealer who sells Motorcraft plugs. Also, get a set of new spark plug boots to go with them. Changing them is easy enough. When you pull them you will be shocked, and will wonder why Ford recommends a 100k change interval.
https://www.ford-trucks.com/articles...helpful-guide/
https://www.ford-trucks.com/articles...helpful-guide/
Last edited by JKBrad; Yesterday at 02:18 PM.
Cross-Country
Joined: Jun 2025
Posts: 75
Likes: 42
Greetings,
I am about to replace the spark plugs on my 2016 F-150 XLT 5.0. It has about 61,500 miles on it and as far as I know the plugs have never been changed. Haven't owned it long, and the CARFAX doesn't reflect a spark plug change, although the prior owner had it serviced regularly at the place he bought it from. The Owners Manual say 100,00, but I think that's a good bit too long. Probably see gas mileage suffering way before then, although right now the truck runs fine, but maybe already getting less than optimal MPG. I plan to buy the plugs below from Amazon of about $100.00. Copied this directly from Amazon. I looked at a u-tube clip or two, and the job doesn't look to be too much of a hassle. Any suggestions or recommendations based on your experience? Thanks in advance.
I am about to replace the spark plugs on my 2016 F-150 XLT 5.0. It has about 61,500 miles on it and as far as I know the plugs have never been changed. Haven't owned it long, and the CARFAX doesn't reflect a spark plug change, although the prior owner had it serviced regularly at the place he bought it from. The Owners Manual say 100,00, but I think that's a good bit too long. Probably see gas mileage suffering way before then, although right now the truck runs fine, but maybe already getting less than optimal MPG. I plan to buy the plugs below from Amazon of about $100.00. Copied this directly from Amazon. I looked at a u-tube clip or two, and the job doesn't look to be too much of a hassle. Any suggestions or recommendations based on your experience? Thanks in advance.
New Motorcraft SP547 Spark Plug (8 PACK) Finewire Platinum
It is easy to do on the 5.0 other than the truck being so high and the engine being set back a good bit.
Plenty of info about doing it if you search this forum.
And my truck had about 85K. I think the gap was like .060. Agree 100% at being shocked. Sad thing is the new plugs made no noticeable difference in performance or efficiency.
Last edited by 2017coyote; Today at 05:23 PM.
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