OPMustang BG Fluids - Alternatives?

[Ewheels]

I have always used the BG trans and diff fluids from OP Mustang on my car since new.
It's time now for me to do those fluid changes again and OPMustang is out of stock. I can wait a bit but with current supply chain issues, I may need to look elsewhere.
Can anyone recommend another solid brand for MT-82 (2018 version) and Torsen fluids?

 

[Scootsmcgreggor]

Take a look at Motul DCTF for the trans and Severe Gear for the diff. I've run a few different fluids and so far these have been quite good. Those Frenchies may not work a full week, but when they do they make some nice products!

 

[KazarS197]

I have always used the BG trans and diff fluids from OP Mustang on my car since new.
It's time now for me to do those fluid changes again and OPMustang is out of stock. I can wait a bit but with current supply chain issues, I may need to look elsewhere.
Can anyone recommend another solid brand for MT-82 (2018 version) and Torsen fluids?

Here's some for the Torsen at a good price.

4 Quarts Ultra Guard Gear Oil Full Synthetic 75W-140 Gear Lube BG 75232 for sale online | eBay

Find many great new & used options and get the best deals for 4 Quarts Ultra Guard Gear Oil Full Synthetic 75W-140 Gear Lube BG 75232 at the best online prices at eBay! Free shipping for many products!

www.ebay.com

 

[Ewheels]

Take a look at Motul DCTF for the trans and Severe Gear for the diff. I've run a few different fluids and so far these have been quite good. Those Frenchies may not work a full week, but when they do they make some nice products!

Is that Amsoil Severe Gear?

 

[PaddyPrix]

Take a look at Motul DCTF for the trans and Severe Gear for the diff. I've run a few different fluids and so far these have been quite good. Those Frenchies may not work a full week, but when they do they make some nice products!

I've run Motul DCTF since the beginning, perfectly fine for me, and I was using their 75w140 competition, but hard to stomach at $30/liter.

Thinking about something like Royal Purple 75w140 on the next drain for like half the price.

 

[Ewheels]

What are the differences between ATF, Manual Trans fluid, and DCTF?

 

[PaddyPrix]

What are the differences between ATF, Manual Trans fluid, and DCTF?

Additives and detergents. The manufacturers have all their own requirements to get them just right like Dexron for Chevy, Mercon for Ford, etc.

https://www.motorcraft.com/content/dam/ford-motorcraft/en_us/motorcraft_global/products/lubricants/quick_reference_charts/automatic%20transmission%20fluids%20chart_english.pdf

Depending on the transmission, typical duty/load, rpm/speeds, etc have them figuring out different temperature levels and viscosity indices they'd prefer. Notice how in that chart they mention that CVT are not ATF.

I'm not a chemical engineer, but I'm down to taste test if you join in.

 

[Ewheels]

Additives and detergents. The manufacturers have all their own requirements to get them just right like Dexron for Chevy, Mercon for Ford, etc.

https://www.motorcraft.com/content/dam/ford-motorcraft/en_us/motorcraft_global/products/lubricants/quick_reference_charts/automatic%20transmission%20fluids%20chart_english.pdf

Depending on the transmission, typical duty/load, rpm/speeds, etc have them figuring out different temperature levels and viscosity indices they'd prefer. Notice how in that chart they mention that CVT are not ATF.

I'm not a chemical engineer, but I'm down to taste test if you join in.

Roger that.
I'm afraid I'm entering the rabbit hole now. I saw AMSOIL manual trans fluid but says its only 5w30 when BG is 75w80
Then Royal Purple Sychromax fluid says it's for low viscosity requirements

Luckily OPMustang emailed back and said should be back in stock tomorrow....but now that I'm looking around, BG Products seem rather expensive

 

[mikeD4V]

I've been running Redline (trans and diff) for the past 2 years/~35 events with no complaints. Redline MTL and 75w140 are ~$60/gallon and still look serviceable when they come out after ~8 days (fluid changes with tire changes bc no fluid coolers).

 

[EF1]

Roger that.
I'm afraid I'm entering the rabbit hole now. I saw AMSOIL manual trans fluid but says its only 5w30 when BG is 75w80
Then Royal Purple Sychromax fluid says it's for low viscosity requirements

Luckily OPMustang emailed back and said should be back in stock tomorrow....but now that I'm looking around, BG Products seem rather expensive

The BG fluids are supposed to be really good. A friend of mine has used their fluids for years in his 2008. You may have been looking at the Amsoil synchromesh fluid. It is pretty thin. I have run RedLine mtl 75w80 in my MT82 and their GL5 75w140 gear lube for years with great luck. It available through Summit Racing. I have 95k on the car with 50+ track days at this point. I had Ben Calimer go through the transmission while it was out for a clutch replacement and he said there wasn't any gear damage. I am now running Amsoil 75w90 since that is what he recommends for his rebuilt transmissions. I haven't been running it long enough to notice a difference.

 

[Scootsmcgreggor]

Is that Amsoil Severe Gear?

Ah sorry no I meant Motul Gear Competition 75w140.

 

[nickyoobatz]

The BG fluids are supposed to be really good. A friend of mine has used their fluids for years in his 2008. You may have been looking at the Amsoil synchromesh fluid. It is pretty thin. I have run RedLine mtl 75w80 in my MT82 and their GL5 75w140 gear lube for years with great luck. It available through Summit Racing. I have 95k on the car with 50+ track days at this point. I had Ben Calimer go through the transmission while it was out for a clutch replacement and he said there wasn't any gear damage. I am now running Amsoil 75w90 since that is what he recommends for his rebuilt transmissions. I haven't been running it long enough to notice a difference.

Are you running the "cocktail" I've seen recommended that includes Synchomesh? Or just strictly Amsoil 75w90?

 

[KazarS197]

Are you running the "cocktail" I've seen recommended that includes Synchomesh? Or just strictly Amsoil 75w90?

Looks like the cocktail is not recommend.

PSA: MT82 Fluid For Track Use

DO NOT use the "Calimer cocktail" for track use. Calimer now tells me that we should run straight 75W90 or at least 2 qts 75W90 + .75 qt synchromesh. There is no information like this on the website or given without specifically asking, but now that my brand new stage 2 is broken already after...

trackmustangsonline.com

 

[nickyoobatz]

Looks like the cocktail is not recommend.

PSA: MT82 Fluid For Track Use

DO NOT use the "Calimer cocktail" for track use. Calimer now tells me that we should run straight 75W90 or at least 2 qts 75W90 + .75 qt synchromesh. There is no information like this on the website or given without specifically asking, but now that my brand new stage 2 is broken already after...

trackmustangsonline.com

Glad I'm running the 2 qts of 75w90 and .75 of synchomesh since last year then lmao. At least I haven't done any track days, only autocrosses.

 

[EF1]

Are you running the "cocktail" I've seen recommended that includes Synchomesh? Or just strictly Amsoil 75w90?

Ben Callimer is no longer recommending the cocktail for track use. He is recommending straight Amsoil 75w90. He shipped 3 quarts with the transmission.

 

[nickyoobatz]

Ben Callimer is no longer recommending the cocktail for track use. He is recommending straight Amsoil 75w90. He shipped 3 quarts with the transmission.

That’s what I was getting at. Thank you for the info.

 

[S550AZ]

I have been running BG in the trans and Millers Oils 75-140 NT in the rear end. Have been really happy with both.

 

[Ewheels]

OP Mustang re-stocked. Got BG fluids for trans and diff.
Thanks for the alternative options everyone!

 

[JDee]

BG in the trans will not protect it, I was using it and my trans took the dump. Syncros and all other shift mechanism parts were shot, bearings and shafts were OK.
My trans guy said it is too thick for the MT82, using thick oils prevents the syncros from engaging quickly without crunching that you can't hear, this builds more heat and wears them out quickly.
Ford recommends their double clutch fluid, I have been using Motul DCT oil since the rebuild and so far it is superior to anything else I have used. Motul DCT meets the Ford spec. Also now have carbon fibre syncros which hopefully will last longer.
Also put a cooler on, which is likely the biggest reason why the thing seems to be working better. Keeping heat down seems to be key.