V10 Powertrain Life Expectency
#1
12-27-2018, 07:50 PM
V10 Powertrain Life Expectency
Got a Question: My Ex has a V10 and 155K miles on it. I am very diligent about oil changes and the use of duralube every other oil change. I am having no issues or oil burning problems. What is the life expectancy of this engine? Same question about the transmission? I had considered dropping the tranny and having it re-built, do I need to consider it? I don't want to change the fluid with this many miles on it as the fluid at this point is a friction modifier. It is the original power train. When I bought this at a dealership in Georgia, they had just replaced the rear axel because the previous owner locked up the diff.
Would any of you pros recommend an after market diff cover with cooling fins? I touched it after a 100 mile drive towing 9k and it was hot. Not looking to hop this thing up, just do some preventative aftermarket add-ons. She is an awesome truck, just don't want a breakdown on a long haul. I keep it in a garage and covered when not in use. It is a purpose vehicle for me, not a daily driver. She is a beautiful Red/Gold Limited package with very few cosmetic issues. How I went this long without one I do not know, I hardly feel the trailer behind me, not like my 2011 5.0 F150.
I know, lots of questions, any help is appreciated!
Would any of you pros recommend an after market diff cover with cooling fins? I touched it after a 100 mile drive towing 9k and it was hot. Not looking to hop this thing up, just do some preventative aftermarket add-ons. She is an awesome truck, just don't want a breakdown on a long haul. I keep it in a garage and covered when not in use. It is a purpose vehicle for me, not a daily driver. She is a beautiful Red/Gold Limited package with very few cosmetic issues. How I went this long without one I do not know, I hardly feel the trailer behind me, not like my 2011 5.0 F150.
I know, lots of questions, any help is appreciated!
#2
12-27-2018, 08:12 PM
#3
12-27-2018, 08:27 PM
Agreed, change the trans fluid now and the slush box will last longer than without. Actually a good trans flush is even better than a pan fluid change, instructions can be found in the Tech Folder at the top of the EX forum page, it's a pretty simple procedure and it gets nearly all of the fluid replaced in one shot.
If you want a cool new inner aluminum rear diff cover, get the '08 Super Duty version, they run about $50 and look good. I have that cover and I monitor my rear diff temp via a stand alone gauge and it runs at 200/210-ish while towing our almost 12K TT and 170/180 unloaded.
With proper care the V-10 should see 350/400K without any serious issues. There has been at least one that went over a million miles and several documented 500K+ miles V-10s, they are very durable units.
If you want a cool new inner aluminum rear diff cover, get the '08 Super Duty version, they run about $50 and look good. I have that cover and I monitor my rear diff temp via a stand alone gauge and it runs at 200/210-ish while towing our almost 12K TT and 170/180 unloaded.
With proper care the V-10 should see 350/400K without any serious issues. There has been at least one that went over a million miles and several documented 500K+ miles V-10s, they are very durable units.
#4
12-27-2018, 08:50 PM
#5
12-27-2018, 09:40 PM
Lead Driver
I don’t think there is an advertised B10 or B50 rating on gas motors but if you consider the V10 was meant as a 7.3 diesel alternative and the 7.3 B50 rating is 350,000 miles then it is probably fair to consider 200,000 as a reasonable B50 target for the V10.
4r100, again no published rating as far as I know but 200,000 seems to be ballpark if oil is changed on scheadule.
fwiw, your therory on not changing the fluid is just plain wrong, change it according to the mfg scheadule for best results.
rear differentials should run about 165* in normal operation, yes that is very hot to the touch but it is normal
ring gear life is usually cut short by a bearing failure which is typically cause by a breakdown in lubrication.
change the fluids and I bet you get well over 500,000 out of the rear axle bearings
ujoints arerated at 5000 hours, if correctly serviced with fresh grease
ypu start to get the idea things last longer when service intervals are not extended
4r100, again no published rating as far as I know but 200,000 seems to be ballpark if oil is changed on scheadule.
fwiw, your therory on not changing the fluid is just plain wrong, change it according to the mfg scheadule for best results.
rear differentials should run about 165* in normal operation, yes that is very hot to the touch but it is normal
ring gear life is usually cut short by a bearing failure which is typically cause by a breakdown in lubrication.
change the fluids and I bet you get well over 500,000 out of the rear axle bearings
ujoints arerated at 5000 hours, if correctly serviced with fresh grease
ypu start to get the idea things last longer when service intervals are not extended
#6
12-27-2018, 09:51 PM
The B10 life for the 6.8 is 80k and B50 is 200k. This is only published for the 6.8 in medium duty service. Seems reasonable because that's what I see at work. By 150k they sound terrible until their own demise around 200k. However in lighter duty they do last longer and have seen many here pushing 300k.
#7
12-27-2018, 09:53 PM
Lead Driver
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#8
12-28-2018, 02:17 PM
Fleet Mechanic
Our 5.4L with 170K needs the timing chain guides replaced.
Just wondering if our 6.8L will need the same service.
#9
12-28-2018, 02:29 PM
Fleet Mechanic
Since you're towing you might consider changing the OEM 6.8L aux cooler for the one used with 2003 5R110 trans.
It's over twice as big and bolts in place of the OEM aux cooler.
I think your hitch has the smaller bolts, but you're still under the 10K rating of the hitch for that year.
Changing the bolts to the larger ones used in 2002+ will upgrade your hitch to 12.5K.
#10
12-28-2018, 02:34 PM
#11
12-28-2018, 04:17 PM
Fleet Mechanic
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