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Ford F150 2015+ 5.0 Actually Have Tighter Clearances [or 5w20 Just for CAFE? ] #5355746 02/20/20 05:10 PM
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Fallguy Offline OP
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I hear those that are against using 5w30 state that newer Fords have tighter clearances. But then they never advise what the old/new clearance difference are. I do not know much of clearances but would be most interesting to find out.

(1.) Is it verifiable that ford clearances have changed/tightened ( in particular ford 5.0 2015+ ).

(2.) Is thinner oil 5w20 required for tighter clearances so the oil can get in between better and pump up a better hydrodynamic wedge?

I still suspect its all mostly just for CAFE but would like to hear from anyone with engine building experience/knowledge of the specs on the items above.

regards,

Last edited by Fallguy; 02/20/20 05:12 PM.

"Yes I likely did a search already, I want more info".
Re: Ford F150 2015+ 5.0 Actually Have Tighter Clearances [or 5w20 Just for CAFE? ] [Re: Fallguy] #5355762 02/20/20 05:19 PM
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skyactiv Offline
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The now obsolete 4.6 V8 would last hundreds of thousands of miles using bulk 5W20 dinosaur oil.


Wife: 15' Audi A4 quattro 6 speed manual
Me: 18' Elantra Sport 6 speed manual
The rude guy that points out reality


Re: Ford F150 2015+ 5.0 Actually Have Tighter Clearances [or 5w20 Just for CAFE? ] [Re: skyactiv] #5355770 02/20/20 05:24 PM
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Blkstanger Offline
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Originally Posted by skyactiv
The now obsolete 4.6 V8 would last hundreds of thousands of miles using bulk 5W20 dinosaur oil.

And would do the same running 10w30.


99 Jeep WJ 4.7 200,000mi. Maxlife 10w30, Fram Ultra.
15 Ford Escape S 2.5, 75,000mi. Castrol Edge EP 5w30 Fram Ultra.
Re: Ford F150 2015+ 5.0 Actually Have Tighter Clearances [or 5w20 Just for CAFE? ] [Re: Blkstanger] #5355806 02/20/20 05:55 PM
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BLND1 Offline
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Originally Posted by Blkstanger
Originally Posted by skyactiv
The now obsolete 4.6 V8 would last hundreds of thousands of miles using bulk 5W20 dinosaur oil.

And would do the same running 10w30.


Or baby oil for that matter.... what a beast of an engine (maybe not power wise...).

I even ran 15w40 in a couple f-150’s for a few OCI.

Re: Ford F150 2015+ 5.0 Actually Have Tighter Clearances [or 5w20 Just for CAFE? ] [Re: Blkstanger] #5355807 02/20/20 05:56 PM
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Brian123 Offline
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Originally Posted by Blkstanger
Originally Posted by skyactiv
The now obsolete 4.6 V8 would last hundreds of thousands of miles using bulk 5W20 dinosaur oil.

And would do the same running 10w30.


5W-30

Re: Ford F150 2015+ 5.0 Actually Have Tighter Clearances [or 5w20 Just for CAFE? ] [Re: Fallguy] #5355817 02/20/20 06:04 PM
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1978elcamino Online Content
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the coyote is a very high revving motor, truth be told the tolerances are probably on the loose side. In the Mustang the manual specifically states using 5w50 for "track use" so a "thicker" oil will do no harm.

Re: Ford F150 2015+ 5.0 Actually Have Tighter Clearances [or 5w20 Just for CAFE? ] [Re: Fallguy] #5355820 02/20/20 06:11 PM
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hatt Offline
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If a little thicker oil couldn't get through engine clearances no engine would ever survive a winter.


2013 F150 5.0, Delo 400 XSP 5W-40, Wix 57502
2010 Camry 2.5, PP 10W-30, Mobil1 M1C-251A
Re: Ford F150 2015+ 5.0 Actually Have Tighter Clearances [or 5w20 Just for CAFE? ] [Re: hatt] #5355827 02/20/20 06:18 PM
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bbhero Offline
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Originally Posted by hatt
If a little thicker oil couldn't get through engine clearances no engine would ever survive a winter.



True true indeed hatt....


I think it's just fine to run a 0w16, 0w20, 5w20 in vehicles meant to run that in them...

I would also say that the VQ motor that specd a 5w30 in my generation of VQ then changed to a 0w20 was and is a bit peculiar... And if I owned a newer VQ motor and I was driving it kind of hard a good bit of the time... I'd run a 5w30 in say a 2017, 2018 etc Maxima with a VQ 3.5 motor in it.... But if one typically is doddling around in that same car same VQ motor in it... A 0w20 would be just fine I'd bet too.


Nissan Altima 3.5 Coupe
Cam2 Full synthetic 5w30 Carquest Blue 84356
"Treat your family like your friends and treat your friends like your family."
Re: Ford F150 2015+ 5.0 Actually Have Tighter Clearances [or 5w20 Just for CAFE? ] [Re: Fallguy] #5355830 02/20/20 06:21 PM
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oldhp Offline
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Can't be a clearance issue. Remember when FORD back spec'd to 5W20 from 5W30? I think it was the 4.6. It's strictly for CAFE.


"None of us are getting out here alive.....drink that beer.....eat that pizza......drive that Hot Rod"
"When others cut you down, remember where they came from."
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Re: Ford F150 2015+ 5.0 Actually Have Tighter Clearances [or 5w20 Just for CAFE? ] [Re: Fallguy] #5355839 02/20/20 06:31 PM
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joekingcorvette Offline
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I run 5W-20 in my Ford and have done it with other Ford trucks for several years without any problems at all.


2005 Chevrolet Corvette
2014 Ford F-150 4x4 supercrew
2014 Jeep Grand Cherokee Limited (wifes)
2012 Honda Civic 4 door (my daily driver)
2007 Lund Tyee Grand Sport Mercury 115HP 9.8HP
Re: Ford F150 2015+ 5.0 Actually Have Tighter Clearances [or 5w20 Just for CAFE? ] [Re: Fallguy] #5355841 02/20/20 06:32 PM
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joekingcorvette Offline
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I run 5W-20 in my Ford and have done it with other Ford trucks for several years without any problems at all.


2005 Chevrolet Corvette
2014 Ford F-150 4x4 supercrew
2014 Jeep Grand Cherokee Limited (wifes)
2012 Honda Civic 4 door (my daily driver)
2007 Lund Tyee Grand Sport Mercury 115HP 9.8HP
Re: Ford F150 2015+ 5.0 Actually Have Tighter Clearances [or 5w20 Just for CAFE? ] [Re: oldhp] #5355870 02/20/20 07:15 PM
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My daughters 2002 3.0 vulcan was back speced to 5w20. it has been on a steady diet of 5w30 Citgo for 65 000 miles since we acquired it with 50 k on it in 2008 and our freestyle has run a 100 k on 5w30


Last edited by Nitronoise; 02/20/20 07:19 PM. Reason: Additional infoSpell check

07 Ford Freestyle 166K
06 Honda Acord EX 133K
02 Ford Tarus 123K
00 Buick Regal SC 144K
95 Goldwing 28K

Re: Ford F150 2015+ 5.0 Actually Have Tighter Clearances [or 5w20 Just for CAFE? ] [Re: Fallguy] #5355871 02/20/20 07:16 PM
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JOD Offline
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Originally Posted by Fallguy


I still suspect its all mostly just for CAFE but would like to hear from anyone with engine building experience/knowledge of the specs on the items above.

regards,


why is this discussion still going on? seriously, ford switch to 20 weight oils 20 years ago.

sure, better fuel economy was certainly a factor in the decision. So what?

Re: Ford F150 2015+ 5.0 Actually Have Tighter Clearances [or 5w20 Just for CAFE? ] [Re: JOD] #5355889 02/20/20 07:35 PM
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spasm3 Offline
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Originally Posted by JOD


why is this discussion still going on? seriously, ford switch to 20 weight oils 20 years ago.






Ford and GM switched. I just didn't! grin2

Last edited by spasm3; 02/20/20 07:35 PM.

13 elantra 81k 5w30 synpwr
03 chevy avalanche 83k synpwr 5w30
17 mazda cx-5 17000 miles synpwr 5w30
Re: Ford F150 2015+ 5.0 Actually Have Tighter Clearances [or 5w20 Just for CAFE? ] [Re: Fallguy] #5355892 02/20/20 07:36 PM
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tig1 Offline
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I first used M1 5-20 in 1978 because it performed so well compared to 10-40. For the last 3 Fords I have owned (total of 512K) I have used M1 20 wt oils with very good results.


2007 Ford Fusion 255,000 miles
M1 5-20HM
2017 Ford Fusion 86K
M1 0-20EP
10,000 mile OCIs on both engines
M1 ATF and M1 LV HP ATF
M1 10-30 in all OPE
MC filters

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