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Why did Ford go from 5W20 to 5W30? #4464087
07/19/17 02:10 PM
07/19/17 02:10 PM
Joined: Jun 2008
Posts: 192
Texas
AnarchyX Offline OP
AnarchyX  Offline OP
Joined: Jun 2008
Posts: 192
Texas
I recall in the early aughts they were one of the first, or few, car companies that required 5W20 for their cars. Now they seem to have gone to where most everyone has always been, namely 5W30.

Anyone know why the change?

Re: Why did Ford go from 5W20 to 5W30? [Re: AnarchyX] #4464090
07/19/17 02:15 PM
07/19/17 02:15 PM
Joined: Jan 2011
Posts: 632
Anaheim, CA
zorobabel Offline
zorobabel  Offline
Joined: Jan 2011
Posts: 632
Anaheim, CA
Ecoboost


1997 Maxima 190k, QSGB 5w30+QSUD 5w30 (2:1), PL14477
2004 Corolla 193k, VWB 5w20 + SSS 10w40, MGL4967
Re: Why did Ford go from 5W20 to 5W30? [Re: AnarchyX] #4464092
07/19/17 02:16 PM
07/19/17 02:16 PM
Joined: Oct 2004
Posts: 8,291
Cincinnati, OH, USA
bullwinkle Offline
bullwinkle  Offline
Joined: Oct 2004
Posts: 8,291
Cincinnati, OH, USA
If you're referring to the Ecoboost engines, it's because they're prone to fuel in the oil, causing viscosity losses. Otherwise, I hadn't heard their regular non-EB gas engines were changing. 5W20 is an EPA invention anyway.


06 Ram 3500 CTD 4X4(FG Venturi), 93 GMC C3500 6.2, 89 F-450 7.3, 98 XJ 4.0(XG8A), 05 xB(XG3600), 18 Transit 3.7, 03 Merc Grand Marquis 4.6 2V(XG2)
Re: Why did Ford go from 5W20 to 5W30? [Re: AnarchyX] #4464093
07/19/17 02:16 PM
07/19/17 02:16 PM
Joined: Sep 2008
Posts: 3,983
Southeast Texas
gfh77665 Offline
gfh77665  Offline
Joined: Sep 2008
Posts: 3,983
Southeast Texas
Pretty much an admittance by Ford that a thicker oil adds protection.

Re: Why did Ford go from 5W20 to 5W30? [Re: AnarchyX] #4464095
07/19/17 02:17 PM
07/19/17 02:17 PM
Joined: Oct 2005
Posts: 7,094
Colorado
Kuato Offline
Kuato  Offline
Joined: Oct 2005
Posts: 7,094
Colorado
Yes for the most part turbo and direct injection are tough on oil.

Ford have also gone to 5w30 in the NA 6.2L V8 in the SuperDuty...apparently 5w20 wasn't up to heavy duty use.


Thick vs Thin test: 15k / 43k miles complete
Re: Why did Ford go from 5W20 to 5W30? [Re: AnarchyX] #4464097
07/19/17 02:18 PM
07/19/17 02:18 PM
Joined: Apr 2010
Posts: 13,537
Chicago, IL
dparm Offline
dparm  Offline
Joined: Apr 2010
Posts: 13,537
Chicago, IL
Slows down the viscosity loss due to DI fuel contamination, I would guess.


2017 Chevrolet Corvette Grand Sport
Re: Why did Ford go from 5W20 to 5W30? [Re: AnarchyX] #4464098
07/19/17 02:18 PM
07/19/17 02:18 PM
Joined: Jul 2016
Posts: 682
il usa
merconvvv Offline
merconvvv  Offline
Joined: Jul 2016
Posts: 682
il usa
Eggs yellows are bad for you
Then they are ok for you.

Engine health i suppose.


1988 Mazda RX7 na PP 10w30 Noack 4.7
1994 Chrysler Concorde 3.3
1999 Ford Expedition 4.6 QSUD 10W30 NOACK 5.0
Re: Why did Ford go from 5W20 to 5W30? [Re: zorobabel] #4464100
07/19/17 02:20 PM
07/19/17 02:20 PM
Joined: Mar 2013
Posts: 5,021
The Midwest
skyactiv Online content
skyactiv  Online Content
Joined: Mar 2013
Posts: 5,021
The Midwest
Originally Posted By: zorobabel
Ecoboost


I was gonna guess that, too. Some models that had/have natural aspirated engines specified 5W20 and the new turbo direct injection engines use a 5W30?


Wife: 15' Audi A4 quattro 6 speed manual
Me: 13' VW GTI 3 door 6 speed manual
Wanted: 2019 Ford Ranger
Re: Why did Ford go from 5W20 to 5W30? [Re: AnarchyX] #4464101
07/19/17 02:21 PM
07/19/17 02:21 PM
Joined: Jul 2016
Posts: 682
il usa
merconvvv Offline
merconvvv  Offline
Joined: Jul 2016
Posts: 682
il usa
Chevy requires 5w30 in their little 2016 2.4 nonturbo my sis drives.

Last edited by merconvvv; 07/19/17 02:21 PM.

1988 Mazda RX7 na PP 10w30 Noack 4.7
1994 Chrysler Concorde 3.3
1999 Ford Expedition 4.6 QSUD 10W30 NOACK 5.0
Re: Why did Ford go from 5W20 to 5W30? [Re: AnarchyX] #4464118
07/19/17 02:34 PM
07/19/17 02:34 PM
Joined: Oct 2014
Posts: 12,553
Idaho
CT8 Offline
CT8  Offline
Joined: Oct 2014
Posts: 12,553
Idaho
What would make the 5W-20 oil better?


2015 Ford F150 2.7
2018 Ford F350 6.2
Re: Why did Ford go from 5W20 to 5W30? [Re: zorobabel] #4464124
07/19/17 02:38 PM
07/19/17 02:38 PM
Joined: Sep 2015
Posts: 3,935
Connecticut
69GTX Offline
69GTX  Offline
Joined: Sep 2015
Posts: 3,935
Connecticut
To my knowledge, they are still recommending 5w-20 on most cars built in 1990's and early 2000's. They back specced engines that were designed for 30 grade....down to 20 grade back around 2001. The modular motors - especially the 4.6L are the most obvious.

Ford Oil Specs

Yet I look at this chart linked above and I can't make sense of it. For my 2002 Lincoln (4.6L 4v DOHC) it appears to say recommended 5w-20 up to 2004. Then blank. So what do I use now? LOL. The back spec went into effect in 2001. My 2002 calls for 5w-20 on the filler cap and owner's manual. My 1997 4.6L DOHC with the identical engine was specced for 5w-30. In the past 1-2 yrs I'm sure I saw Ford Oil charts that still had the 4.6L engines on 5w-20....unless they forward specced the charts again to hide the evidence of the goof from 2001...lol.


----------------

2001 Lincoln Cont 4.6L DOHC/ 39K mi / QS HM 5w30 / FUG XG2
1999 Camaro SS M6 /19K /Mobil 1 0w40 /Fram UG /GM MTL-ATF
1969 Ply GTX/RRs
Re: Why did Ford go from 5W20 to 5W30? [Re: gfh77665] #4464126
07/19/17 02:38 PM
07/19/17 02:38 PM
Joined: May 2005
Posts: 3,511
Alberta, Canada
Smokescreen Offline
Smokescreen  Offline
Joined: May 2005
Posts: 3,511
Alberta, Canada
Originally Posted By: gfh77665
Pretty much an admittance by Ford that a thicker oil adds protection.




13 Civic Si 2.4L- 69Kkms(43Kmi)-PP,Wix
05 LeSabre 3.8L-210Kkms(134Kmi)-PP,Wix
03 Sierra 2500 6.0L-204Kkms(127Kmi)-PP,Wix

All with mpg > EPA
Re: Why did Ford go from 5W20 to 5W30? [Re: CT8] #4464136
07/19/17 02:52 PM
07/19/17 02:52 PM
Joined: Nov 2016
Posts: 51
CA
igs Offline
igs  Offline
Joined: Nov 2016
Posts: 51
CA
Originally Posted By: CT8
What would make the 5W-20 oil better?


Nothing. 5W-20 sux.


2018 Honda J35Y6 | Walmart SuperTech 20W50 Summer | Chevron Supreme 5W30 Winter | 6 Month OCI
Re: Why did Ford go from 5W20 to 5W30? [Re: AnarchyX] #4464138
07/19/17 02:52 PM
07/19/17 02:52 PM
Joined: Jun 2003
Posts: 2,767
BC, Canada
userfriendly Offline
userfriendly  Offline
Joined: Jun 2003
Posts: 2,767
BC, Canada
The thinnies posted that 5W30 is too thick for modern engines with tight clearances.
I know, they opened up the clearances to allow the thick 5w30 oil to flow through.

Re: Why did Ford go from 5W20 to 5W30? [Re: 69GTX] #4464139
07/19/17 02:53 PM
07/19/17 02:53 PM
Joined: Nov 2016
Posts: 51
CA
igs Offline
igs  Offline
Joined: Nov 2016
Posts: 51
CA
Originally Posted By: 69GTX
To my knowledge, they are still recommending 5w-20 on most cars built in 1990's and early 2000's. They back specced engines that were designed for 30 grade....down to 20 grade back around 2001. The modular motors - especially the 4.6L are the most obvious.

Ford Oil Specs

Yet I look at this chart linked above and I can't make sense of it. For my 2002 Lincoln (4.6L 4v DOHC) it appears to say recommended 5w-20 up to 2004. Then blank. So what do I use now? LOL. The back spec went into effect in 2001. My 2002 calls for 5w-20 on the filler cap and owner's manual. My 1997 4.6L DOHC with the identical engine was specced for 5w-30. In the past 1-2 yrs I'm sure I saw Ford Oil charts that still had the 4.6L engines on 5w-20....unless they forward specced the charts again to hide the evidence of the goof from 2001...lol.


The only reason they are "recommending" 5W-20 is because the EPA has a gun pointed to their head.


2018 Honda J35Y6 | Walmart SuperTech 20W50 Summer | Chevron Supreme 5W30 Winter | 6 Month OCI
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