Did the rear diff on the F-150:
Put in 75w140 Valvoline in+ Lubegard gear.
Don't think it was FF, looked decent.
98,140 miles
Put in 75w140 Valvoline in+ Lubegard gear.
Don't think it was FF, looked decent.
98,140 miles
post your latest differential fluid change
- Thread starter electrolover
- Start date
4WD
$50 site donor 2024
Originally Posted by 4WD
2017 Tahoe 4WD … Changed FF in both differentials and transfer case at one year old / 17k miles
The rear fluid and transfer case looked pretty good with both magnets fairly well loaded … the front end magnet could not hold another spec and that's where the silver fluid below came from:
Based on the Tahoe front differential oil (looked like thick silver paint) … decided to do the Z71 @ 7k
Rear was replaced with Delvac 1 75w90 … FF was black but magnet was half loaded.
Front replaced with Mobil 1 75w90 … FF was cloudy and magnet loaded.
Transfer case was replaced with Transmax MV Synthetic … FF looked good … magnet fully loaded.
2017 Tahoe 4WD … Changed FF in both differentials and transfer case at one year old / 17k miles
The rear fluid and transfer case looked pretty good with both magnets fairly well loaded … the front end magnet could not hold another spec and that's where the silver fluid below came from:
Based on the Tahoe front differential oil (looked like thick silver paint) … decided to do the Z71 @ 7k
Rear was replaced with Delvac 1 75w90 … FF was black but magnet was half loaded.
Front replaced with Mobil 1 75w90 … FF was cloudy and magnet loaded.
Transfer case was replaced with Transmax MV Synthetic … FF looked good … magnet fully loaded.
04 grand Cherokee
3.73 ls diff
Out: unknown
In: Mobil 1 75/90, motorcraft xl-3 friction modifier
3.73 ls diff
Out: unknown
In: Mobil 1 75/90, motorcraft xl-3 friction modifier
2018 Subaru XV @ 15K miles
Front & rear diff
Out: Factory Filled
In: Redline GL5 75w85
Used rear diff looks quite dark, front is clear
Front & rear diff
Out: Factory Filled
In: Redline GL5 75w85
Used rear diff looks quite dark, front is clear
2017 Ram 1500 4x2 19,636 miles
Drained the factory fill and replaced it with Amsoil SVG 75W140
Drained the factory fill and replaced it with Amsoil SVG 75W140
Ram 3500, 67xxxkm, front AAM axle. Out was FF. In was Co-op Sonic Gear Oil SL, 75w90.
12 tundra
Front and rear diffs
Out: unknown
In: Mobil 1 75/90
Front and rear diffs
Out: unknown
In: Mobil 1 75/90
2006 Pathfinder
185,000 miles
Out. Valvoline 75w-90
In. Supertech 75w-90
185,000 miles
Out. Valvoline 75w-90
In. Supertech 75w-90
Rx350 in my sig got rear diff and transfer case fluid recently at 55k with the liquid gold OE Toyota 75w85
The tundra got front diff and t-case with M1 75w90 and rear diff with conventional Castrol 80w90 with LSD additive per the manual (it specifies dino in the old LSD Tundras, oh well it works great still after all these years so I roll with it) at 160k
Both rolling along nicely
The tundra got front diff and t-case with M1 75w90 and rear diff with conventional Castrol 80w90 with LSD additive per the manual (it specifies dino in the old LSD Tundras, oh well it works great still after all these years so I roll with it) at 160k
Both rolling along nicely
2013 Chevrolet Silverado 2500HD Duramax
Front
Out: Severe Gear 75W-90
In: Severe Gear 75W-90
Rear
Out: Severe Gear 75W-110
In: Severe Gear 75W-110
Front
Out: Severe Gear 75W-90
In: Severe Gear 75W-90
Rear
Out: Severe Gear 75W-110
In: Severe Gear 75W-110
Last edited:
78 Chevy C10 rear diff
Out: unknown thick nasty stuff
In: Mystik 80w90
Out: unknown thick nasty stuff
In: Mystik 80w90
2004 Audi A4
out I'm assuming was the nasty factory fill with 256k km on it
in Fuchs Titan Sintopoid FE 75w85 and in the m/t which has shared oil for center diff and front diff it got Fuchs Titan Sintofluid 75w80
2013 Q5
out was factory fill which looked nice and clean
in Fuchs Titan Sintopoid 75w90.
out I'm assuming was the nasty factory fill with 256k km on it
in Fuchs Titan Sintopoid FE 75w85 and in the m/t which has shared oil for center diff and front diff it got Fuchs Titan Sintofluid 75w80
2013 Q5
out was factory fill which looked nice and clean
in Fuchs Titan Sintopoid 75w90.
2017 Ram 3500, 68,000km. AAM 9.25 front axle. Out was not to bad looking factory fill. In went Federated Co-op Gear Oil SL, group 4, 75w90.
2018 Nissan Titan XD 5.6L Gas
5k on the Truck - went through some deep water so decided to change the fluid.
Drained fluid was clean, magnetic plug's had some material on it.
Out: Factory Fill - Nissan Differential Oil Hypoid Super-CT Synthetic GL-5 75W-90
In: Amsoil SVG 75W140 for both the front and rear differential's
5k on the Truck - went through some deep water so decided to change the fluid.
Drained fluid was clean, magnetic plug's had some material on it.
Out: Factory Fill - Nissan Differential Oil Hypoid Super-CT Synthetic GL-5 75W-90
In: Amsoil SVG 75W140 for both the front and rear differential's
2012 Toyota Tacoma 2.7L 5-Speed Manual 4WD.
85,000 miles.
Front & Rear Differentials:
Out: Original Toyota Factory Differential Gear Oil.
In: Redline 75W-85 GL-5 Differential Gear Oil.
85,000 miles.
Front & Rear Differentials:
Out: Original Toyota Factory Differential Gear Oil.
In: Redline 75W-85 GL-5 Differential Gear Oil.
2005 Ford Ranger (rear diff)
86,500 on truck
50,000 (10 years) on oil
Out - Valvoline SynPower 75w-90
In - Super Tech Syntheric 75w-140
Old oil looked new
86,500 on truck
50,000 (10 years) on oil
Out - Valvoline SynPower 75w-90
In - Super Tech Syntheric 75w-140
Old oil looked new
Originally Posted by mkbruin
I figured you all would appreciate this.
2001 Jeep XJ, 90k miles on factory fluid.
That's some nasty looking stuff, what's the history on this Jeep? I assume it's seen some water in its day? How long have you owned it?
I figured you all would appreciate this.
2001 Jeep XJ, 90k miles on factory fluid.
That's some nasty looking stuff, what's the history on this Jeep? I assume it's seen some water in its day? How long have you owned it?
Last edited:
Similar threads
