Notices
2015 - 2020 F150 Discuss the 2015 - 2020 Ford F150
Sponsored by:
Sponsored by:

Oil filter change interval

Thread Tools
 
Search this Thread
 
Old Nov 26, 2025 | 12:48 AM
  #1  
OpenTrackRacer's Avatar
OpenTrackRacer
Thread Starter
|
Cross-Country
15 Year Member
Joined: Sep 2006
Posts: 75
Likes: 0
Oil filter change interval

I'm not driving my 2016 5.0 enough to change the oil by mileage. The oil life monitor is hitting zero after one year. I'm running synthetic oil and a Mobil 1 extended life filter. I'm going to change the oil due to moisture contamination concerns but I'm wondering if there's any reason to change the filter?

Thoughts?

Thanks!
 
Reply
Old Nov 26, 2025 | 06:50 AM
  #2  
SpencerPJ's Avatar
SpencerPJ
Fleet Mechanic
5 Year Member
Community Favorite
Joined: Jan 2020
Posts: 1,341
Likes: 390
IMO, It's $8, why not?
 
Reply
Old Nov 26, 2025 | 10:58 AM
  #3  
GlueGuy's Avatar
GlueGuy
Lead Driver
10 Year Member
Liked
Loved
Community Favorite
Joined: May 2015
Posts: 5,840
Likes: 350
From: Mts. S. of San Francisco
Originally Posted by SpencerPJ
IMO, It's $8, why not?
+1
Same opinion.
 
Reply
Old Nov 26, 2025 | 11:44 AM
  #4  
JKBrad's Avatar
JKBrad
Moderator
Veteran: Army
20 Year Member
Liked
Loved
Joined: May 2005
Posts: 8,108
Likes: 1,171
From: San Antonio, TX
Club FTE Gold Member
Why wouldn't you? It's half the cost of a fast food meal.
 
Reply
Old Nov 26, 2025 | 12:17 PM
  #5  
swann79's Avatar
swann79
Fleet Mechanic
Veteran: Army
20 Year Member
Loved
Community Favorite
Joined: Aug 2003
Posts: 1,543
Likes: 45
From: Kemmerer, Wyoming
So that you're not contaminating your fresh oil with old oil from the filter. I have never understood the logic behind changing the oil, but not the filter.
 
Reply
Old Nov 26, 2025 | 01:36 PM
  #6  
OpenTrackRacer's Avatar
OpenTrackRacer
Thread Starter
|
Cross-Country
15 Year Member
Joined: Sep 2006
Posts: 75
Likes: 0
One thing I didn't mention is that I'm on crutches for the foreseeable future and changing the oil is a lot easier for me than changing the filter.

If the filter is supposed to be good for 15,000 miles, what's the logic in changing it after 3,000 miles? Changing the oil after one year is a no brainer due to moisture absorption. The 4-5 ounces of oil left in the filter isn't going to contaminate the 6 quarts of new oil.
 
Reply
Old Nov 26, 2025 | 03:20 PM
  #7  
SpencerPJ's Avatar
SpencerPJ
Fleet Mechanic
5 Year Member
Community Favorite
Joined: Jan 2020
Posts: 1,341
Likes: 390
I doubt that missing the filter once is going to ruin the truck. My 3.5 is so darn easy to change the filter, but I'll admit, I have no idea difficulty of the 5.0. Do as your abilities allow, and if need be, simply take it to a decent shop and have it done, certainly no shame in that.
 
Reply
Old Nov 26, 2025 | 05:11 PM
  #8  
2017coyote's Avatar
2017coyote
Cross-Country
Photogenic
Liked
Loved
Community Favorite
Joined: Jun 2025
Posts: 72
Likes: 41
Originally Posted by SpencerPJ
I doubt that missing the filter once is going to ruin the truck. My 3.5 is so darn easy to change the filter, but I'll admit, I have no idea difficulty of the 5.0. Do as your abilities allow, and if need be, simply take it to a decent shop and have it done, certainly no shame in that.
I agree but I might not be inclined to buy a truck that had it's oil service done this way.
 

Last edited by 2017coyote; Nov 26, 2025 at 05:13 PM.
Reply
Old Nov 26, 2025 | 06:20 PM
  #9  
OpenTrackRacer's Avatar
OpenTrackRacer
Thread Starter
|
Cross-Country
15 Year Member
Joined: Sep 2006
Posts: 75
Likes: 0
Originally Posted by 2017coyote
I agree but I might not be inclined to buy a truck that had it's oil service done this way.
Just wondering why? What happens to the oil filter that would cause an issue?
 
Reply
Old Nov 26, 2025 | 07:07 PM
  #10  
2017coyote's Avatar
2017coyote
Cross-Country
Photogenic
Liked
Loved
Community Favorite
Joined: Jun 2025
Posts: 72
Likes: 41
Originally Posted by OpenTrackRacer
Just wondering why? What happens to the oil filter that would cause an issue?
well, to me, it's kinda like taking a shower and putting on dirty clothes. You may feel fresh and clean but you are dirty and stink.

Once a fresh oil filter and oil become used they both have some amount of contamination. It may or may not be an acceptable amount. So even though your intervals are long and your miles are short there is still some amount of contamination. All of it being in the filter.

The other potential risk is an internal seal/glue failure inside the filter due to age or the drain back valve not working due to age.

These VVT engines are complicated and I wouldn't risk using a used filter and possibly having it cause problems with the phasers. Specifically the little oil filter screens.

So at the end of the day, ask yourself if the savings is worth the risk and you will have your answer. And if you told me your service routine I'd pass on buying the truck.
 
Reply
Old Nov 26, 2025 | 07:11 PM
  #11  
2017coyote's Avatar
2017coyote
Cross-Country
Photogenic
Liked
Loved
Community Favorite
Joined: Jun 2025
Posts: 72
Likes: 41
Originally Posted by SpencerPJ
I doubt that missing the filter once is going to ruin the truck. My 3.5 is so darn easy to change the filter, but I'll admit, I have no idea difficulty of the 5.0. Do as your abilities allow, and if need be, simply take it to a decent shop and have it done, certainly no shame in that.
the 5.0 is easy. A touch messy if you are impatient and rush the draining process.
 
Reply
Old Nov 26, 2025 | 07:43 PM
  #12  
OpenTrackRacer's Avatar
OpenTrackRacer
Thread Starter
|
Cross-Country
15 Year Member
Joined: Sep 2006
Posts: 75
Likes: 0
Originally Posted by 2017coyote
the 5.0 is easy. A touch messy if you are impatient and rush the draining process.
The filter change on a 4x4 5.0 makes a mess. Ford didn't really seem to care where the oil was going to go when the filter was removed.
 
Reply
Old Nov 26, 2025 | 09:16 PM
  #13  
2017coyote's Avatar
2017coyote
Cross-Country
Photogenic
Liked
Loved
Community Favorite
Joined: Jun 2025
Posts: 72
Likes: 41
Originally Posted by OpenTrackRacer
The filter change on a 4x4 5.0 makes a mess. Ford didn't really seem to care where the oil was going to go when the filter was removed.
I've had way worse. When I do mine I have very little mess. I let it drain for a bit before removing it and when it is off the threads I tilt it up and let it drain some more. All the oil drains on the back side of the little pan. Put on the new filter and spray some brake clean to wash out residual oil. Maybe takes 10 minutes. Easy peasy not much mess.
 
Reply
Old Nov 26, 2025 | 11:40 PM
  #14  
JKBrad's Avatar
JKBrad
Moderator
Veteran: Army
20 Year Member
Liked
Loved
Joined: May 2005
Posts: 8,108
Likes: 1,171
From: San Antonio, TX
Club FTE Gold Member
I pull my the front wheels up on ramps. That way the oil from the filter drains off the back of the plastic tray. I really hate where Ford puts these filters, more for the messiness. Access isn’t that bad when up on ramps.
 
Reply
Old Nov 27, 2025 | 11:47 AM
  #15  
PupnDuck's Avatar
PupnDuck
Fleet Mechanic
20 Year Member
Joined: Jul 2005
Posts: 1,461
Likes: 102
From: Staten Island, NY
Engine oil doesn't "wear out". It becomes contaminated with combustion byproducts and the various additives become depleted. The filter is there to capture particulate matter in the oil and sludge that really shouldn't be there if the additives are doing their job. If your only concern is actually moisture contamination, then take the truck for a 50 mile highway run to boil the water out of the oil. To change the oil without changing the filter seems like false savings.

If you're physically limited in your ability to change the oil, simply pay a bit more and have the dealer do it. Or one of the quick change places.
 
Reply



All times are GMT -5. The time now is 01:34 AM.