Recent Topics
Autel MaxiDAS® DS708
by Michael_P
7 minutes 56 seconds ago
Gulf War Story
by redbone3
Today at 10:41 AM
Oils that dont burn in a healthy 5.4L Triton?
by 2012AccentSE
Today at 10:41 AM
Purolator 14477 For toyota spin on
by kazual881
Today at 10:16 AM
Wow...what a shame.
by andrewg
Today at 10:16 AM
Mobil 1 0W40 for 2015 Golf?
by Revrick
Today at 10:07 AM
This tire has good tread ... right?
by Miller88
Today at 10:06 AM
Castrol system 0w-30 for sale....central CT
by kazual881
Today at 10:03 AM
Can I use M1 0w40 in '05 Landcruiser?
by TKNY
Today at 09:30 AM
Alignment Tips & Warnings
by SumpChump
Today at 09:09 AM
Cheap used car advice
by greenjp
Today at 08:31 AM
laptop in checked baggage
by joaks
Today at 08:23 AM
Newest Members
consolidated, mike_a, dlayman, BRader, GuySir
52259 Registered Users
Who's Online
108 registered (another Todd, 2010_FX4, 2012AccentSE, 1foxracing, Al, 5 invisible), 1657 Guests and 229 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
52259 Members
66 Forums
223790 Topics
3549476 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Page 3 of 4 < 1 2 3 4 >
Topic Options
#2618533 - 05/05/12 06:52 AM Re: Installed my Mag-Hytec today [Re: MolaKule]
Jim Allen Offline


Registered: 08/12/05
Posts: 4477
Loc: NW Ohio
Originally Posted By: MolaKule


Well stated. The specialized FM's prevent stick-slip chatter for sure. I have always preferred adding a 1/4 tube of differential FM at a time until the chatter dissappears, that way, you won't overdose, since many diffy oils already contain a certain dosage, except for those oils that specifically say they don't contain extra FM's.

I don't know how anyone can "sniff" an oil and tell that it was FM and any failures could be attributed to it.

After some use, gear oil stinks to "high heaven" anyway because of the phosphorous and sulfur content.

Early additive FM's had a problem with oxidation resistance but the newer FM's contain the improved anti-oxidants so I wouldn't be too concerned with oxidation caused by the FM's.



Thanks Mola! As to the sniff test, I naturally had my doubts but didn't have the experience to argue the point. I have to say, the oil was extremely malodorous & burnt smelling.
_________________________
Jim Allen
Keepin' the Good Old Days of Four Wheeling Alive

Top
#2620075 - 05/07/12 08:03 AM Re: Installed my Mag-Hytec today [Re: 2010_FX4]
BeerCan Offline


Registered: 01/08/07
Posts: 282
Loc: FL
Originally Posted By: 2010_FX4




The Amsoil seemed to be thinner than the Ford oil and quite a bit thinner than the old Ford oil. I will be sending the Ford oil out for a UOA and I will post the results when I have them. I am sure this is a "seat of the pants" assessment, but there feels like less drag on the powertrain. It is CERTAINLY going to make maintenance much easier in the future.

Thoughts and comments always welcome!


I don't give much credence to seat of the pants assessments either when it comes to oils. Having said that, even though I used different oil than you (M1) I have the same experience. It seems the truck "rolls" better. shrug
Might be placebo or wishful thinking but I swear there is a difference.
BTW I love this cover. It makes checking the fluid very easy and I really like the idea that it will keep the diff cooler when towing.
_________________________
2013 Ford F350 6.7 PSD Delo 400 LE 15W-40
2012 Hyundai Genesis 3.8 M1 SN 5w-30
2007 Ford 500 Duratec 3.0 M1 5w-30
1999 F350 7.3L PSD MC 15w-40 CJ-4

Top
#2620232 - 05/07/12 12:06 PM Re: Installed my Mag-Hytec today [Re: BeerCan]
2010_FX4 Online   content


Registered: 09/26/10
Posts: 3230
Loc: USA
Originally Posted By: BeerCan
I don't give much credence to seat of the pants assessments either when it comes to oils. Having said that, even though I used different oil than you (M1) I have the same experience. It seems the truck "rolls" better. shrug
Might be placebo or wishful thinking but I swear there is a difference.
BTW I love this cover. It makes checking the fluid very easy and I really like the idea that it will keep the diff cooler when towing.

I think it does roll easier, and I am starting to think it is not just in my head either. It simply feels as though there is less drag on the drive train (could still be seat of the pants), but I like it. I wish I would have bought one of these covers when I did the initial change at 13,300--would have made this last change SO much easier. I am waiting to see the results of the UOA to see how the Ford oil worked...
_________________________
2010 F-150 FX4......M1 0W-20 SN EP + FU......(Last OC @ 136.7K)
2014 Explorer LTD....KENDALL GT-1 0W-20 SN + MC....(Last OC @ 15.0K)

Top
#2620340 - 05/07/12 02:43 PM Re: Installed my Mag-Hytec today [Re: 2010_FX4]
Jim Allen Offline


Registered: 08/12/05
Posts: 4477
Loc: NW Ohio
It will be VERY interesting to see the difference between that first UOA and this one.
_________________________
Jim Allen
Keepin' the Good Old Days of Four Wheeling Alive

Top
#2620458 - 05/07/12 04:47 PM Re: Installed my Mag-Hytec today [Re: 2010_FX4]
Jeff_in_VABch Offline


Registered: 05/31/11
Posts: 396
Loc: Virginia
Wouldnt you guys think that overfilling the diff would cause more drag/pumping losses as the ring and pinion are deeper in the oil and pull a larger ring of oil around the ring gear/carrier?
_________________________
Interests - motorsports/engine building/tuning
Background - Performed work at refineries and several oil blending plants.
Occupation - Mech Engr

Top
#2620484 - 05/07/12 05:15 PM Re: Installed my Mag-Hytec today [Re: MolaKule]
dailydriver Offline


Registered: 03/14/06
Posts: 7226
Loc: Bucks County, Pa.
Originally Posted By: MolaKule
Well stated. The specialized FM's prevent stick-slip chatter for sure. I have always preferred adding a 1/4 tube of differential FM at a time until the chatter dissappears, that way, you won't overdose, since many diffy oils already contain a certain dosage, except for those oils that specifically say they don't contain extra FM's.

Early additive FM's had a problem with oxidation resistance but the newer FM's contain the improved anti-oxidants so I wouldn't be too concerned with oxidation caused by the FM's.


Mola; Can FMs (especially the XL-3 stuff) actually fall out of solution (or even shear down to ineffectiveness) as some on here have suggested before??

I ask because the low speed turn sqawking/groaning of my Eaton Posi ceases after putting in ~ 6ounces of the Motorcraft stuff, but then (especially after a few long highway runs at speed) the noises come back in about 2-3 weeks time. mad shrug
_________________________
2000 Z28 1SC 6 speed 175K miles
Red Line 0W-40/Sustina 0W-20 (20/80 mix)
Fram Ultra filter
Synpower 75W-140/4oz. XL-3
Red Line D4 in the T56

Top
#2620642 - 05/07/12 07:59 PM Re: Installed my Mag-Hytec today [Re: Jeff_in_VABch]
BeerCan Offline


Registered: 01/08/07
Posts: 282
Loc: FL
Originally Posted By: Jeff_in_VABch
Wouldnt you guys think that overfilling the diff would cause more drag/pumping losses as the ring and pinion are deeper in the oil and pull a larger ring of oil around the ring gear/carrier?



Agreed. That is exactly what I thought. I cannot explain why this is happening, or if it is indeed happening. I just know that at this point I am convinced there is a difference. In a week I probably will not even notice it.
_________________________
2013 Ford F350 6.7 PSD Delo 400 LE 15W-40
2012 Hyundai Genesis 3.8 M1 SN 5w-30
2007 Ford 500 Duratec 3.0 M1 5w-30
1999 F350 7.3L PSD MC 15w-40 CJ-4

Top
#2620692 - 05/07/12 08:37 PM Re: Installed my Mag-Hytec today [Re: BeerCan]
2010_FX4 Online   content


Registered: 09/26/10
Posts: 3230
Loc: USA
Originally Posted By: BeerCan
Originally Posted By: Jeff_in_VABch
Wouldnt you guys think that overfilling the diff would cause more drag/pumping losses as the ring and pinion are deeper in the oil and pull a larger ring of oil around the ring gear/carrier?

Agreed. That is exactly what I thought. I cannot explain why this is happening, or if it is indeed happening. I just know that at this point I am convinced there is a difference. In a week I probably will not even notice it.

Yes; I would think the same, especially since I have 2x the oil in the differential that I had before. However, it does not seem to feel that way, maybe it has something to do with the difference between the Ford oil and the Amsoil? shrug
_________________________
2010 F-150 FX4......M1 0W-20 SN EP + FU......(Last OC @ 136.7K)
2014 Explorer LTD....KENDALL GT-1 0W-20 SN + MC....(Last OC @ 15.0K)

Top
#2620694 - 05/07/12 08:38 PM Re: Installed my Mag-Hytec today [Re: Jim Allen]
2010_FX4 Online   content


Registered: 09/26/10
Posts: 3230
Loc: USA
Originally Posted By: Jim Allen
It will be VERY interesting to see the difference between that first UOA and this one.

Me too; I just hope I caught a clean sample. It was not as easy as it should have been, but I suppose the only contaminant would be silicon.
_________________________
2010 F-150 FX4......M1 0W-20 SN EP + FU......(Last OC @ 136.7K)
2014 Explorer LTD....KENDALL GT-1 0W-20 SN + MC....(Last OC @ 15.0K)

Top
#2675234 - 07/05/12 10:43 PM Re: Installed my Mag-Hytec today [Re: 2010_FX4]
Onug Offline


Registered: 03/19/12
Posts: 19
Loc: Washington, USA
I just installed my cover today too. I decided to go with the Motorcraft oil for my rig (2010 F-350). I thought it would take a full six qts, so I added the appropriate amount of FM (14oz) and started filling away. The oil started coming out the stock fill hole at 4 qts, which I thought was a bit strange. Glad I found this post, sounds like the only way to get the full advertised amount is to fill above the stock fill hole. Not sure I want to do that.

But now I've got too much FM in the diff...nuts. Any ideas?

Top
#2679273 - 07/09/12 07:29 PM Re: Installed my Mag-Hytec today [Re: 2010_FX4]
Onug Offline


Registered: 03/19/12
Posts: 19
Loc: Washington, USA
Just to follow up, I sent a note to Mag Hytec to see what they said. They confirmed you need to fill above the stock oil plug line and to go ahead and add the full six qts.

I'm going to add at least one more and see where it falls on the dip stick.

Top
#2680313 - 07/10/12 09:53 PM Re: Installed my Mag-Hytec today [Re: Onug]
2010_FX4 Online   content


Registered: 09/26/10
Posts: 3230
Loc: USA
Originally Posted By: Onug
Just to follow up, I sent a note to Mag Hytec to see what they said. They confirmed you need to fill above the stock oil plug line and to go ahead and add the full six qts.

I'm going to add at least one more and see where it falls on the dip stick.

Is it 6QTs or 5? I bought 5QTs and used about 4.5 to fill it a little above the halfway mark on the dipstick. I would imagine that another 1.5QTs would put the level quite a bit above the full mark on the dipstick.

I will be checking this post to see how it goes...
_________________________
2010 F-150 FX4......M1 0W-20 SN EP + FU......(Last OC @ 136.7K)
2014 Explorer LTD....KENDALL GT-1 0W-20 SN + MC....(Last OC @ 15.0K)

Top
#2680501 - 07/11/12 07:13 AM Re: Installed my Mag-Hytec today [Re: 2010_FX4]
Jim Allen Offline


Registered: 08/12/05
Posts: 4477
Loc: NW Ohio
When you drive, some will go up the tubes in some axles and stay there, so after you drive a bit go back and check the level. The other option is to jack up the truck from one side of the axle and let oil run down to the opposite hub. Then jack the other side, let the oil settle a while and recheck. I do this after I've rebuilt an axle to make sure the bearings have been lubed well.

As to six quarts vs five, I know I would NOT fill over the upper line on the dipstick. In fact, I have always been skeptical of Jerry's (the owner and engineer at Mag-Hytec) stance on the oil levels. I have had it pounded into my head by various engineering contacts that an overfull diff is bad news. I have to revisit this with some of them when I get a chance. Like 2010_FX4, I hedged my bets and didn't go to the full mark. Even at that the oil level is about 3/4 inch above the factory fill line and oil is flowing freely up the tubes. That part might be a good thing in terms of wheel bearing life but my biggest worry is oil foaming/aeration... something that increases the oxidation rate of the oil. When you talk to Jerry, he makes a good case and claims to have thoroughly tested his method. He COULD be right but it's not proven to my satisfaction. Anecdotally, I have thousands of miles in two trucks with the diffs ostensibly "overfull" and nothing untoward has happened. I guess my research could be said to be "ongoing."
_________________________
Jim Allen
Keepin' the Good Old Days of Four Wheeling Alive

Top
#2680860 - 07/11/12 02:03 PM Re: Installed my Mag-Hytec today [Re: Jim Allen]
Jeff_in_VABch Offline


Registered: 05/31/11
Posts: 396
Loc: Virginia
About the overfilling

While I wouldnt overfill one of my differentials, I doubt it hurts anything from a longevity standpoint. Almost all of these modern differentials and axle bearings are already bulletproof. It would only reduce efficiency and driven power.

I have been water wheeling many times where the differentials become completely full of a water and oil mix. When they are completly full, they will definately leak from every seal. I would say that as long as the seals are not leaking, you are fine.
_________________________
Interests - motorsports/engine building/tuning
Background - Performed work at refineries and several oil blending plants.
Occupation - Mech Engr

Top
#2684941 - 07/15/12 07:14 PM Re: Installed my Mag-Hytec today [Re: 2010_FX4]
Onug Offline


Registered: 03/19/12
Posts: 19
Loc: Washington, USA
I got some time today to work on my truck, so after some thinking I decided to go ahead and top off my differential per Mag-Hytec's instructions. I added another full qt of oil before reaching the top of the fill line. I have about 5qts of oil in there, plus the FM. Next time around, I'm going to to use oil with the FM already added so I don't have to mess with the two fluids (hopefully).

Stay tuned…I'll let everyone know if I have any problems.

Don't forget to re-torque the nuts. I had one move slightly when I rechecked everything today.

Top
Page 3 of 4 < 1 2 3 4 >