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#4488787 - 08/14/17 10:01 PM Motorhome oil
Ammofirst Offline


Registered: 06/22/17
Posts: 353
Loc: Western usa
A friend of ours has just purchased a 2015 fleetwood bounder 33' class A motorhome. Ford 6.8L V-10 / 5spd auto transmission. With 15k miles on it. location: Central Florida : They want to tow a small SUV under 4000lbs and plan to travel to mountainous regions including the Rockies. Didn't ford just change the oil spec last year for this application? Anyhoo he's wondering about oil & Tranny fluid options that will protect the best & keep his warranty intact. Thanks.

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#4488791 - 08/14/17 10:09 PM Re: Motorhome oil [Re: Ammofirst]
JHZR2 Offline



Registered: 12/14/02
Posts: 41804
Loc: New Jersey
What is the ford owners manual recommendation?

Id consider going a grade up.

Id speculate that Ford recommends 5w-20, and the use might be well served with a high HTHS 5w-30, perhaps one of the HDEOs out there...

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#4488840 - 08/14/17 11:26 PM Re: Motorhome oil [Re: Ammofirst]
Seventh Offline


Registered: 11/11/12
Posts: 234
Loc: NorCal
My class C with the V10 has 2016 production date on the chassis and says 5w30 on the fill cap. Oddly enough I sent in the factory fill in for analysis and it was definitely a 20wt.

I sometimes tow a 17.5' boat with mine, so pretty similar towing weight.

I settled on Castrol Magnatec 5w30 because it seemed like the best bang for the buck oil I could find that meets Ford spec.

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#4488902 - 08/15/17 02:09 AM Re: Motorhome oil [Re: Ammofirst]
Ammofirst Offline


Registered: 06/22/17
Posts: 353
Loc: Western usa
What is the ford spec? Is there a ford code number or just a particular viscosity ?

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#4488922 - 08/15/17 04:01 AM Re: Motorhome oil [Re: Ammofirst]
SilverFusion2010 Online   content


Registered: 06/29/11
Posts: 1665
Loc: Crawfordville FL
5w30 is probably fine. If he sees consumption, move up to a thick 30 like M1 HM 10w30 or a 10w30 HDEO


Remember the ilisac gf-5 30 are all on the thin side of 30. HTHS 3.0-3.1

M1 HM 10w-30 is HTHS 3.5
_________________________
2010 Ford Fusion SE 3.0L V6, 178k miles M1 HM 10w-30

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#4488923 - 08/15/17 04:15 AM Re: Motorhome oil [Re: Ammofirst]
dnewton3 Offline



Registered: 05/14/07
Posts: 7392
Loc: Indianapolis, IN
Looking at both the F53 chassis and the E450 cab configurations:
http://www.fordservicecontent.com/Ford_C...-US_07_2014.pdf
http://www.fordservicecontent.com/Ford_C...-US_12_2014.pdf

They both call for 5w-20 engine oil for the Triton 6.8L for 2015 vehicles. However, I want to note that folks often mistake what is recommended for what is required. They recommend grades; they require lubes that meet Ford spec (in this case WSS-M2C945-A). There are a whole host of lubes that meet that spec. And they don't have to be "syn" or "semi-syn" either. I will note this right from the manual on page 117:
"Use of synthetic or synthetic blend motor oil is not mandatory. Only use fluid that meets Ford specifications". They have had that in the manuals for years, but many still live by the flawed misinformation touted on the 'net.

I can assure you that if your friend wants to go up one grade, it won't likely harm the engine. But OTOH, there's no proof to show it's going to help, either. The severe service factor for these MH chassis, with towing, still makes for a 5k mile OFCI. I have a TON of UOA data on the mod-motor engines, and they generally don't alter the wear rates with oil vis differences. And to be pre-emptive before you ask, just use a decent brand name filter that is spec'd for the application. No - your not going to find a "better" filter by using something larger. UOA wear data shows the Ford mod-motors simply don't respond to filter or lube selections. They wear very well, overall. One's loyalty to brands or biased preferences might matter to your brain, but it does NOT reflect as such in the crankcase. I've got probably 750 UOAs on the 4.6L, 5.4L, 6.8L engines. I lay aside desires and stick to facts. Facts don't lie. My point boils down to this .... it won't help or hurt the engine to use a 5w-30. Some here are going to tell you that it will do "better" with a thicker oil. Well, I'd like to see the proof of their claim. Because I don't see it at all. I've seen everything from 5w-20 to 10w-40 used in these motors, and generally the wear rates never are affected. So why risk warranty if the performance does not change with the vis selection? AFTER warranty has expired, do what he wants to do. But again, it simply does not matter to the crankcase, despite how much it offends BITOG feelings.

The specs call for LV tranny fluid. I'd change it about every 30k miles, given the service factor.

You didn't ask, but the rear diff calls for a lifetime fill of either 75w-90 or 75w-140. I'm not a fan of "lifetime" fills, but there's no reason to change it uber-frequently either. It only has 15k miles on the vehicle. Change it now, or not; probably won't matter one way or another. I'd change it once before 30k miles at some point, and then not worry about it after that until 100k miles.



Please note ...
Anytime someone wants to know about how to service a Ford vehicle, visit this site:
www.motorcraftservice.com
put in the region, look up "owner's information" under the "free resources" menu, and put in the vehicle data.
Lost manuals are no excuse these days!


.


Edited by dnewton3 (08/15/17 04:31 AM)
_________________________
The act of preventative maintenance, in and of itself, is FAR MORE important than brand/grade/base choices among lubes and filters.
- under maintaining something is akin to abuse/neglect; that can kill equipment by shortening the lifespan
- over maintaining something has never been proven to be anything but a waste of time and money

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#4488932 - 08/15/17 05:12 AM Re: Motorhome oil [Re: Ammofirst]
dlundblad Offline


Registered: 09/30/13
Posts: 10058
Loc: Indiana
Didn't Ford up their oil weights for their work truck lines?
_________________________
03 Jeep WJ 4.0 199k Castrol Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 177k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 145k Rotella T5 10w30 Fram TG3980


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#4488964 - 08/15/17 06:38 AM Re: Motorhome oil [Re: Ammofirst]
mattwithcats Offline


Registered: 06/13/13
Posts: 1662
Loc: Virginia
5W-20 or 5W-30

http://www.fordservicecontent.com/Ford_C...46490&div=f

I would run full synthetic, and 5W-3 0....
_________________________
2009 Smart Pure
Pennzoil Platinum Euro 0W-40, Purolator Synthetic PSL 14610, 45 mpg...
185/55R15 General HP tires, "H" speed rated, 44 psi (300 kpa)

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#4489000 - 08/15/17 07:31 AM Re: Motorhome oil [Re: Ammofirst]
Camprunner Offline


Registered: 02/19/08
Posts: 1034
Loc: MA.
My father has had two motor homes with the Ford V10 both were driven hard across the country several times also towing his Jeep. He used 5w30 Formula Shell full synthetic in both and both ran fantastic and used no make up oil.

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#4489127 - 08/15/17 10:25 AM Re: Motorhome oil [Re: Ammofirst]
sw99 Offline


Registered: 03/22/06
Posts: 2120
Loc: Colorado
I would tell them to check O'Reilly's for some closeout Havolive DS 5w30 and stock up for that big gasser.
_________________________
2016 Nissan Versa S 1.6L
2018 Subaru Outback 2.5i
2018 Ford F350 6.2L


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#4489128 - 08/15/17 10:25 AM Re: Motorhome oil [Re: Ammofirst]
bubbatime Offline


Registered: 03/18/08
Posts: 5628
Loc: South Florida
I'd run one grade thicker myself, in a synthetic 5W30
_________________________
17 Chrysler Pacifica Mobil 1 5W30
13 Yamaha XT250 Valv MC 10W40
12 Suzuki S40 Rotella 15W40
10 Acura TSX 2.4 PZL Plat 5W30
06 GMC Sierra Nextgen 10W30



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#4489215 - 08/15/17 12:10 PM Re: Motorhome oil [Re: Ammofirst]
Red91 Offline


Registered: 12/09/13
Posts: 2127
Loc: Alabama, United States
If they want synthetic, Castrol 0W-40 is hard to beat. I'd probably choose that.

Now I await my bashing for a difference in opinion.
_________________________
'89 Chevy 1500
Napa 20/50
'15 Chevy Cruze
AcDelco syn dexos 5/30

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#4489216 - 08/15/17 12:11 PM Re: Motorhome oil [Re: Ammofirst]
SnakeOil Offline


Registered: 02/09/09
Posts: 211
Loc: USA
If they have a motor home and not a travel trailer, I'd go synthetic and 5w30 if that's what Ford recommends. I'm sure it has some kind of oil cooler and transmission cooler given the application. If the engine and transmission aren't taken care of, it's not like you can just swap it out. If my truck breaks towing a trailer, I can just get another truck to pull it. Not so much on a motor home. Synthetic is also going to last longer in the sump if they don't use it often. Most are good for a year if they don't go through the miles first.
_________________________
2007 Kia Sorento EX - 268K
2016 Kia Optima 1.6T - 8K

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#4489875 - 08/16/17 04:54 AM Re: Motorhome oil [Re: dnewton3]
Ammofirst Offline


Registered: 06/22/17
Posts: 353
Loc: Western usa
Originally Posted By: dnewton3
Looking at both the F53 chassis and the E450 cab configurations:
http://www.fordservicecontent.com/Ford_C...-US_07_2014.pdf
http://www.fordservicecontent.com/Ford_C...-US_12_2014.pdf

They both call for 5w-20 engine oil for the Triton 6.8L for 2015 vehicles. However, I want to note that folks often mistake what is recommended for what is required. They recommend grades; they require lubes that meet Ford spec (in this case WSS-M2C945-A). There are a whole host of lubes that meet that spec. And they don't have to be "syn" or "semi-syn" either. I will note this right from the manual on page 117:
"Use of synthetic or synthetic blend motor oil is not mandatory. Only use fluid that meets Ford specifications". They have had that in the manuals for years, but many still live by the flawed misinformation touted on the 'net.

I can assure you that if your friend wants to go up one grade, it won't likely harm the engine. But OTOH, there's no proof to show it's going to help, either. The severe service factor for these MH chassis, with towing, still makes for a 5k mile OFCI. I have a TON of UOA data on the mod-motor engines, and they generally don't alter the wear rates with oil vis differences. And to be pre-emptive before you ask, just use a decent brand name filter that is spec'd for the application. No - your not going to find a "better" filter by using something larger. UOA wear data shows the Ford mod-motors simply don't respond to filter or lube selections. They wear very well, overall. One's loyalty to brands or biased preferences might matter to your brain, but it does NOT reflect as such in the crankcase. I've got probably 750 UOAs on the 4.6L, 5.4L, 6.8L engines. I lay aside desires and stick to facts. Facts don't lie. My point boils down to this .... it won't help or hurt the engine to use a 5w-30. Some here are going to tell you that it will do "better" with a thicker oil. Well, I'd like to see the proof of their claim. Because I don't see it at all. I've seen everything from 5w-20 to 10w-40 used in these motors, and generally the wear rates never are affected. So why risk warranty if the performance does not change with the vis selection? AFTER warranty has expired, do what he wants to do. But again, it simply does not matter to the crankcase, despite how much it offends BITOG feelings.

The specs call for LV tranny fluid. I'd change it about every 30k miles, given the service factor.

You didn't ask, but the rear diff calls for a lifetime fill of either 75w-90 or 75w-140. I'm not a fan of "lifetime" fills, but there's no reason to change it uber-frequently either. It only has 15k miles on the vehicle. Change it now, or not; probably won't matter one way or another. I'd change it once before 30k miles at some point, and then not worry about it after that until 100k miles.



Please note ...
Anytime someone wants to know about how to service a Ford vehicle, visit this site:
www.motorcraftservice.com
put in the region, look up "owner's information" under the "free resources" menu, and put in the vehicle data.
Lost manuals are no excuse these days!


Thanks for taking the time to post all the info. I appreciate it. Thanks to all. One question I can't answer : Did ford "back spec" the oil viscosity change & if so to what year ? Put another way : If he runs 5w-30 will that void his warranty? Is it very difficult to install oil & Tranny fluid temp gauges on something like this? Would be nice to have.
.


Edited by dnewton3 (08/16/17 07:46 AM)
Edit Reason: corrected quote range - mod

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#4489942 - 08/16/17 08:07 AM Re: Motorhome oil [Re: Ammofirst]
dnewton3 Offline



Registered: 05/14/07
Posts: 7392
Loc: Indianapolis, IN
If you look at the links, you'll find that both chassis state 5w-20.

The E450 chassis states:
http://www.fordservicecontent.com/Ford_C...-US_12_2014.pdf
page 244 in the manual. These typically get the 2v engine.

The F53 chassis states:
only 5w-20
http://www.fordservicecontent.com/Ford_C...ingEnabled=True

There is this generic link for the 6.8L engine. BUT .... this if from a 2016 manual for the Superduty, not the chassis your friend has.
http://www.fordservicecontent.com/Ford_C...46490&div=f
Here it shows 5w-20 and 5w-30. These typically get the 3v engine.



I don't think 5w-30 is "wrong" to use. But it clearly shows 5w-20 being "right" in both MH chassis (E450 and F53, for the 2015 MY).


As I said, however, despite all the advice you're going to get about how a thicker lube is "better", no evidence supports such a claim. The better way to know, is for your friend to run a few UOAs with 5w-20. Then swap to 5w-30 and run a few more UOAs. It is HIGHLY expected that the wear rates are going to be similar, to a point where statistical differentiation is going to be impossible. It won't help or hurt to run one over the other.


Does he have a "regular" Ford service center he deals with? If so, I'd ask that Ford dealer for their input.


Bottom line is this: this is sort of a quest for a "best" lube, right?
The thing is that he's not likely willing to accept the correct, accurate answer, which is ...
- It does not matter to the engine.
- It may or may not matter to Ford for warranty, but given their mixed application statements, a fair argument can be made for either oil.
_________________________
The act of preventative maintenance, in and of itself, is FAR MORE important than brand/grade/base choices among lubes and filters.
- under maintaining something is akin to abuse/neglect; that can kill equipment by shortening the lifespan
- over maintaining something has never been proven to be anything but a waste of time and money

Top
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