Dodge Durango 3.6L front and rear differential fluid change - 96,000 miles since last change 198,000 total

[wwillson]

Today I changed the front and rear differential fluid in the Durango. I didn't mean to let the fluid go 96,000 miles. It took 6 years to put that many miles on the odometer. The fluid was Super Tech 75w-90. HPL Petty GMS transaxle fluid went back in and I will leave it there for another 100k miles. The Petty GMS fluid is the same fluid that runs around the NASCAR track.

This is what it looked like:

Front:

Rear:

 

[ctechbob]

Nice and clear coming out for sure!

 

[MVAR]

Drain plugs. I wish

 

[billt460]

That stuff looks like it just came out of the bottle.

 

[ctechbob]

Drain plugs. I wish

Right? I'm coming up on my first chosen change on my F150 and I'm going to have to suck out the front, rear, and trans. I miss drain plugs.

Upside is I decided to spend money on a new tool(s) so there's that.

 

[joekingcorvette]

Wow looks like new!

 

[Patrick0525]

Some people with different vehicles are going to interpret ur results as no need to do recommended differential/transfer case fluid maintenance. Taking it as ‘Gospel’.

Confirmation bias: anti-maintenance hypochondriacs. Lol

 

[ka9mnx]

Axles and transmissions are lucky they don't have to deal with combustion

 

[wwillson]

I forgot to mention that it took 6 years to put on 96,000 miles.

 

[Kira]

Your drain shots look like they were taken by a food photographer.

 

[Bighorn2500]

I swapped the OE diff. & T-case fluids on the wife's 2018 Durango at 79,492 miles and it was still very clean as well. Installed 75w85 & D6 Redline oils. I'll do it again around 160k-180k.

Now for my sister-in-laws 2019, it went 206,070 miles on the OE diff. & T-case fluids when I had changed them (7/2024) Surprisingly it didn't look bad, the Durango must be easy on the differentials. Some FS 75w90 generic brand & D6 went back in because that's what I had on the shelf.

 

[billt460]

Wayne, did the drain plugs have magnets? If so, was there any metallic material on them?

 

[wwillson]

Wayne, did the drain plugs have magnets? If so, was there any metallic material on them?

No, the differential drain plugs do not have magnets.