Triax again. 75w140 question

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tcp71

Joined
Aug 12, 2013
Messages
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Location
Alberta
Looking for a 75w140 gear oil for 3 axles (2 different trucks). Found this 5 gallon pail that would make changes easy. I'm running motorcraft 75w140 in the axles now. Says POA in the title, not that i'm hung up on that, but SDS shows different? Would this be serviceable oil in ford 7.5, 8.8 and 9.25 axles? price is right for a decent quantity.

www.triaxlubricants.com

TRIAX SYNERGY GEAR MAX 75W-140 GL-5 Limited Slip | Triax Lubricants

TRIAX SYNERGY GEAR MAX 75W-140 GL-5 Limited Slip. Fast delivery. Free shipping for minimum orders 50 lei.
www.triaxlubricants.com www.triaxlubricants.com




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What is wrong with motorcraft 75w140?

Did you search the forum for existing Triax threads? They are not pretty. I wouldn't buy something that has such a dearth of technical information.
 
Last edited:
Rand said:
I'd post a triax video but it doesnt meet bitog standards.

Just avoid.. anything good about it is marketing.


Also Pails dont make anything easy.. The valvoline squeeze bags make it easy.

You know as much about triax as starfire so use this 5gal pail for 100$ over the triaxxxx

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Actual CAS numbers, thats an improvement.
 
@Rand I used Star Fire 75W-140 in a semi truck a few times, it's not great. The last time I bought 80W-140 just to mix it with HPL Differential Life Cleaner 80W-90, and ran it for 10,000 miles. There was severe additive fallout at the bottom of the Star Fire 80W-140 5 gallon jug. It's not good quality gear oil.

I recommend Delvac, Castrol Syngear, AMZOIL, HPL, Valvoline Heavy Duty, Shell, pretty much any reputable brand. I had good luck with HPL, Castrol Syngear, AMSOIL, and Delvac in heavy duty applications.
 
Vitamin Yoda said:
@Rand I used Star Fire 75W-140 in a semi truck a few times, it's not great. The last time I bought 80W-140 just to mix it with HPL Differential Life Cleaner 80W-90, and ran it for 10,000 miles. There was severe additive fallout at the bottom of the Star Fire 80W-140 5 gallon jug. It's not good quality gear oil.

I recommend Delvac, Castrol Syngear, AMZOIL, HPL, Valvoline Heavy Duty, Shell, pretty much any reputable brand. I had good luck with HPL, Castrol Syngear, AMSOIL, and Delvac in heavy duty applications.
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Well its $100 has more info available and cheaper than triaxxxxxx was my criteria.

I personally wouldnt use it. For the $.001 per mile I can afford Top shelf.
 
This oil is on the PRI approved gear oils. It is very good, and about the same price as the one listed by the OP. I have successfully used this for many hundreds of thousand of miles.

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OP doesnt mention the actual application or why he is using 75w140, not sure 80w140 is suitable for winter in Alberta considering its -39c PP.

Winter Weather in Alberta:
  • In the coldest months of the year (January and February), daytime temperatures are between -5 to -15°C and can drop to as low as -30 to -40°C for short periods of time.
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Rand said:
OP doesnt mention the actual application or why he is using 75w140, not sure 80w140 is suitable for winter in Alberta considering its -39c PP.
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He mentioned trucks. I'd run 75W-90 up there, or HPL Cold Climate 75W-140. That gear oil is on another level.
 
75w140 was spec'd in every Ford 9.75 until 2015 trucks where Ford decided 75w90 was good. same axles, etc. The 8.8 is in the front diff of the F150 in the signature. For the 10 times a year it gets engaged, the same lube as the rear would make sense if it came in a 5 gallon pail. The 7.5 rear is in the boy's latest acquisition, a 2008 ranger single cab 2.3l MT XL special. It's rear axle howls a bit so just swapping fluid to see what is up doesn't require high zoot lube. I guess I'll forget the Triax peepee juice.
 
tcp71 said:
75w140 was spec'd in every Ford 9.75 until 2015 trucks where Ford decided 75w90 was good. same axles, etc. The 8.8 is in the front diff of the F150 in the signature. For the 10 times a year it gets engaged, the same lube as the rear would make sense if it came in a 5 gallon pail. The 7.5 rear is in the boy's latest acquisition, a 2008 ranger single cab 2.3l MT XL special. It's rear axle howls a bit so just swapping fluid to see what is up doesn't require high zoot lube. I guess I'll forget the Triax peepee juice.
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Just get some Valvoline or Mobil 1 then, they both cost the same. Though honestly, if you want to try and fix a hauling diff with oil, I would suggest Red Line 75W-140, as it's overloaded with Phosphorus. Yes, it's more expensive, but well worth it for that particular application. Chances are it will work for your diff.
 
tcp71 said:
Looking for a 75w140 gear oil for 3 axles (2 different trucks). Found this 5 gallon pail that would make changes easy. I'm running motorcraft 75w140 in the axles now. Says POA in the title, not that i'm hung up on that, but SDS shows different? Would this be serviceable oil in ford 7.5, 8.8 and 9.25 axles? price is right for a decent quantity.

www.triaxlubricants.com

TRIAX SYNERGY GEAR MAX 75W-140 GL-5 Limited Slip | Triax Lubricants

TRIAX SYNERGY GEAR MAX 75W-140 GL-5 Limited Slip. Fast delivery. Free shipping for minimum orders 50 lei.
www.triaxlubricants.com www.triaxlubricants.com




View attachment 203894

View attachment 203893
Click to expand...

The oil is called gear max, the sds is not for gear max?
 
Vitamin Yoda said:
Just get some Valvoline or Mobil 1 then, they both cost the same. Though honestly, if you want to try and fix a hauling diff with oil, I would suggest Red Line 75W-140, as it's overloaded with Phosphorus. Yes, it's more expensive, but well worth it for that particular application. Chances are it will work for your diff.
Click to expand...
We can give that a try. Thanks.
 
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