Blackstone Laboratories PTU Test Results

[802SHO]

Here is the PTU Test Results of sample sent in to Blackstone Laboratories. It's a low mileage sample of Redline Lightweight Shockproof gear oil. "Severe Duty" sample of pushing the platform!

I've changed this fluid 5 times in 22k miles. Last 3 times within 5k miles. I've only ever extracted it, never fully emptying it. After I tap it as shown by Mrhighcaliber, we'll see if insolubles decrease.

 

[yaycandy]

Eh, shes good son

 

[802SHO]

Haha we'll see

 

[Zpak]

Hmmm, high visc’s again.

 

[SM105K]

Interesting.

 

[802SHO]

Once taped and flushed I'm hoping to see better results, I'll go another round of RLWSP gear oil for comparison.

 

[Zpak]

I would think, though not ideal, high has to to be better than too low. I’d guess residual buildup mixing in is the culprit.

 

[802SHO]

I would think, though not ideal, high has to to be better than too low. I’d guess residual buildup mixing in is the culprit.

I don't know of a lot of ppl testing this, none actually, so I'm confident with that old nasty residue out it won't look as bad. Definitely a good thing to change it as often as I have, apparently

 

[Zpak]

I look forward to seeing future results.

 

[gimpy]

Definitely a good thing to change it as often as I have, apparently

Imma go with this...

Also the fact I had to change the PTU in my 11' at about 105k.

So with my 16' (bought it new), I change the PTU fluid at least twice a year.

Now, the shop guys giving me a hard time because I don't put many miles on it and still flush/fill the PTU quite regularly. My 16' has 20,3xx miles on it.

 

[Dirty Harry]

What is the reason for the very high Calcium count and what does that mean?

 

[yaycandy]

I wonder if its just the first flush that matters the most, getting the fluid out of it that Ford put in it and replacing it with a better product for heat with the cats being next to it also.
I had issues with my ptu on my 13 and flushed it pretty early, actual flush, changed fluid like 3 times in a weekend. Alot of the issues i had with stock fluid through 20k miles never came back until i traded it in with 85k miles

 

[SHOdded]

What is the reason for the very high Calcium count and what does that mean?

Applications:

• Overbased calcium sulfonates are used for friction modification, anti-wear protection, anti-weld protection, extreme pressure performance and as acid neutralizers

 

[802SHO]

Feedback from Blackstone Laboratories. They as well, think tapping this unit and adding a drain plug is an excellent idea. I highly recommend to everyone to tap it. And I need to coat my DP's which I'm sure are roasting that fluid.