post your latest differential fluid change
- Thread starter electrolover
- Start date
How’d the fluid look with that many miles on it? I changed mine in both diffs on my navigator at 140k and it was NASTY.
2022 Ram 2500 4x4
17,035 miles
Out: factory fill in the rear diff and Transfer case.
In: T/C Amsoil SS MV ATF
Rear Diff Amsoil Severe Gear 75W-90
Didn’t or haven’t changed the Front diff yet since the truck has never been off road and has less than 5 miles in 4 WD.
I have a gallon of Mobil Delvac 75W-90 that is probably going in the Front diff shortly.
17,035 miles
Out: factory fill in the rear diff and Transfer case.
In: T/C Amsoil SS MV ATF
Rear Diff Amsoil Severe Gear 75W-90
Didn’t or haven’t changed the Front diff yet since the truck has never been off road and has less than 5 miles in 4 WD.
I have a gallon of Mobil Delvac 75W-90 that is probably going in the Front diff shortly.
black, some glitter, but nothing I wasn't expecting.
1999 LandCruiser, 109,310 miles (my neighbors and long time friend)
Out: unknown
In: Castrol Axle 80W90 GL-5
Rein M18 magnetic drain plug from FCP
Out: unknown
In: Castrol Axle 80W90 GL-5
Rein M18 magnetic drain plug from FCP
1999 LandCruiser, 109,310 miles (my neighbors and long time friend)
Transfer Case:
Out: unknown
In: Mobil 1 75W-90 LS
Rein M18 magnetic drain plug from FCP
The fluid was black with a pronounced metallic shimmer. Most likely the first change. I plan to repeat in 5,000 miles.
Transfer Case:
Out: unknown
In: Mobil 1 75W-90 LS
Rein M18 magnetic drain plug from FCP
The fluid was black with a pronounced metallic shimmer. Most likely the first change. I plan to repeat in 5,000 miles.
1992 Mercedes 300D 2.5 turbo, 159,310 miles
Out: Castrol Axle 80W90
In: same
11,000 mile OCI, second change since I purchased it.
I added a second M24x1.5 taper magnetic plug. The one installed 11,000 miles ago had some small slivers of metal.
The color of the fluid was nearly the same as new.
The sump is only 1.2 liters. This seems small to me for a car this heavy.
Out: Castrol Axle 80W90
In: same
11,000 mile OCI, second change since I purchased it.
I added a second M24x1.5 taper magnetic plug. The one installed 11,000 miles ago had some small slivers of metal.
The color of the fluid was nearly the same as new.
The sump is only 1.2 liters. This seems small to me for a car this heavy.
2012 Ram 1500 5.7l 4X4
72K miles on truck
39K miles front differential fluid
Out: Supertech Full Synthetic 75W-90
In: Castrol Full Synthetic Transmax 75W-90
Transparent light brown, no glitter noted
I'll change the rear differential and transfer case soon. These still contain factory fill.
72K miles on truck
39K miles front differential fluid
Out: Supertech Full Synthetic 75W-90
In: Castrol Full Synthetic Transmax 75W-90
Transparent light brown, no glitter noted
I'll change the rear differential and transfer case soon. These still contain factory fill.
2020 Jeep Wrangler
56991 miles
The oil was clean, so it may have been done by the previous owners
Rear: Valvoline Full-Synthetic 75w-140 with Limited Slip additive
Front: Valvoline Full Synthetic 75w-90, topped off with Conventional 80w-90 to complete the fill
56991 miles
The oil was clean, so it may have been done by the previous owners
Rear: Valvoline Full-Synthetic 75w-140 with Limited Slip additive
Front: Valvoline Full Synthetic 75w-90, topped off with Conventional 80w-90 to complete the fill
Last week or so I did the front diff on my 2006 Trailblazer, 277,000km. Replaced the cv shafts seal. I think I had done the gear oil late spring 2020. Cannot recall mileage without pulling the logs.
Out was Co-op Gear Oil SL, group 4, 75w90. In was the same.
She was low and dark from my neglect of not changing the seal a year or more back.
Out was Co-op Gear Oil SL, group 4, 75w90. In was the same.
She was low and dark from my neglect of not changing the seal a year or more back.
edyvw
$50 site donor 2025
2011 BMW 328i xDrive:
Front diff:
out: BMW OE 75W90
In: Motul Gear 300 75W90.
Rear Differential:
Out: BMW OE 75W90
In: Motul Gear 300 75W90.
Transfer case:
Out: BMW DTF-1
In: BMW DTF-1.
Front diff:
out: BMW OE 75W90
In: Motul Gear 300 75W90.
Rear Differential:
Out: BMW OE 75W90
In: Motul Gear 300 75W90.
Transfer case:
Out: BMW DTF-1
In: BMW DTF-1.
2015 Ford Transit EcoBoost: 83100 mi
Out: factory fill (Motorcraft 75w85): kind of dark, but not too opaque; Some diff gear faces looked “polished.”
In: HPL Differential Life 75w90
Seems quieter now. (My imagination???)
2013 Subaru 3.6r auto: 83890 mi: front & rear
Out: unknown, but probably factory fill Subaru 75w90: kind of dark, but not too opaque. Some splooge on the drain plug magnets. Rear splooge was black, front splooge was silvery, but no “particles.”
In: Amsoil Severe Gear 75w90
thanks to Pablo’s help and patience, also thanks to HPL’s tech support (David C), as well as @SubieRubyRoo
Out: factory fill (Motorcraft 75w85): kind of dark, but not too opaque; Some diff gear faces looked “polished.”
In: HPL Differential Life 75w90
Seems quieter now. (My imagination???)
2013 Subaru 3.6r auto: 83890 mi: front & rear
Out: unknown, but probably factory fill Subaru 75w90: kind of dark, but not too opaque. Some splooge on the drain plug magnets. Rear splooge was black, front splooge was silvery, but no “particles.”
In: Amsoil Severe Gear 75w90
thanks to Pablo’s help and patience, also thanks to HPL’s tech support (David C), as well as @SubieRubyRoo
- Joined
- Mar 9, 2024
- Messages
- 167
2014 GMC Sierra 89k miles
1.5 quarts unknown fluid out
1.5 quarts Delvac 75w90 in
Fluid exchange done with extraction pump.
1.5 quarts unknown fluid out
1.5 quarts Delvac 75w90 in
Fluid exchange done with extraction pump.
2020 Explorer, 45k, OE rear diff fluid.
50/50 driving, no towing.
In: Supertech 75w-90 full synthetic
Honestly, fluid looked worse than I expected.
50/50 driving, no towing.
In: Supertech 75w-90 full synthetic
Honestly, fluid looked worse than I expected.
2019 Ford Ranger FX4, 73k miles with 150k mile recommended maintenance interval, did it early.
Front diff:
Out: factory fill, came out still gold with some shavings on the magnet. Not bad.
In: RP MaxGear 75w90
Rear locking diff:
Out: factory fill, came out dark black and separated into half frothy lower viscosity brown, some shavings on the magnet. Not great.
In: RP MaxGear 75w90
Transfer case:
Out: factory fill, came out dark brown, some shavings on the magnet
In: Mercon LV ATF (OEM)
Front diff:
Out: factory fill, came out still gold with some shavings on the magnet. Not bad.
In: RP MaxGear 75w90
Rear locking diff:
Out: factory fill, came out dark black and separated into half frothy lower viscosity brown, some shavings on the magnet. Not great.
In: RP MaxGear 75w90
Transfer case:
Out: factory fill, came out dark brown, some shavings on the magnet
In: Mercon LV ATF (OEM)
I bet she rides like a real smoothie now...
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