So what did you do to your SHO today!?

[SM105K]

I appreciate real world results in a specific application.


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I will always prefer specific applications use for literally everything.

That is why I prefer Castrol Edge in the Gold Bottle, and Redline LWSP in the RDU and PTU.

However, I am really interested in the Amsoil LV trans fluid. @mrhighcaliber highly recommends it and that guy knows his stuff as well.

 

[Michigan-SHO]

I will always prefer specific applications use for literally everything.

That is why I prefer Castrol Edge in the Gold Bottle, and Redline LWSP in the RDU and PTU.

However, I am really interested in the Amsoil LV trans fluid. @mrhighcaliber highly recommends it and that guy knows his stuff as well.

Do you have a link to the amsoil atf ?


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[High on Ethanol]

The Castrol does offer courtesy reacharounds via mail in rebates....

I've put in other people's vehicles before and they came back so it must be alright alright alright!

 

[Michigan-SHO]

I will always prefer specific applications use for literally everything.

That is why I prefer Castrol Edge in the Gold Bottle, and Redline LWSP in the RDU and PTU.

However, I am really interested in the Amsoil LV trans fluid. @mrhighcaliber highly recommends it and that guy knows his stuff as well.

This?


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[Ryan Selcer]

Do you have a link to the amsoil atf ?


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This is what ill put in my tranny next time, wasn't aware of it and I had already picked up the mercon by the time I got to the amsoil guy two weeks ago

https://www.amsoil.com/p/signature-...RMM77QUrULALY6r1AVy3_UcNIYsnC6uRoC5HAQAvD_BwE

 

[SM105K]

Yes sir.

Directly from @mrhighcaliber

"I swear the trans fluid is gold if nothing else they make is. Been running SS ATF since 90k, 132k now. Flawless shifting, firmer and quicker part ant wot shifts in my sho vs fresh Mercon LV. Change every 15k and I save it and use it in power steering and non performance applications.

I've also fixed more failed/failing transmissions with that than I can count, where changes with other fluids did nothing. Oil and gear **** is great but the SS LV ATF is probably the product that sets them apart in my experience."

 

[SM105K]

This is what ill put in my tranny next time, wasn't aware of it and I had already picked up the mercon by the time I got to the amsoil guy two weeks ago

https://www.amsoil.com/p/signature-...RMM77QUrULALY6r1AVy3_UcNIYsnC6uRoC5HAQAvD_BwE

Do a 5 in and 5 out with the Mercon since you have it already.

I am probably going to jump onto the Amsoil SS ATF as well. I will do a 5 in and 5 out with the Amsoil, and then another 500 miles later, then one more 500 miles after that. That will get most of the Mercon LV out and replace it with Amsoil SS ATF.

 

[Ryan Selcer]

Do a 5 in and 5 out with the Mercon since you have it already.

I am probably going to jump onto the Amsoil SS ATF as well. I will do a 5 in and 5 out with the Amsoil, and then another 500 miles later, then one more 500 miles after that. That will get most of the Mercon LV out and replace it with Amsoil SS ATF.

Well remember thats what i did two weeks ago, flushed my trans, diff and ptu, I went ahead and drained and filled the trans up with some mercon v my dad had, ran it around for about 30 minutes like a granny, then drained it all and filled it back with the mercon lv, I was just saying next time around I wanna go to the amsoil aftwr finding out about it and just use them across the board im getting prices that are better than retail on cheapo oils so im more than happy to keep going to him, my only concern is he literally could die any day and then i gotta find someone else

 

[Ryan Selcer]

I laid my case. There are zero Redline PTU RDU cars have failed so far. They have also held up in OUR platform in the two fastest SHO's. Also I thrash the **** out of my car in extreme heat. Either on dyno pulls, street light grand prix run, drag strip, or fast prolonged deserts runs at 90+ mph in 100 to 115 degree weather. I would venture to say my SHO is right up there with the most "spirited" drive SHO's.

Also the gentlemen (SHOdded) that gave us the lead on Redline LWSP gave us good reason too. He didnt compared it to the burnt fluid. The main thing is you want is an ester based fluid for heat. It also gives amazing shock protection. He also gives Amsoil a high rating as well. Also Redline is shipped directly to my house from Amazon, same day.

Why do you wanna bring up 90mph highway running when we are talking about the ptu and rdu, its my understanding the ptu and rdu aren't under any load doing that

 

[High on Ethanol]

Why do you wanna bring up 90mph highway running when we are talking about the ptu and rdu, its my understanding the ptu and rdu aren't under any load doing that

Heat probably

 

[SM105K]

Why do you wanna bring up 90mph highway running when we are talking about the ptu and rdu, its my understanding the ptu and rdu aren't under any load doing that

The PTU is always spinning and under load. It is directly connected via axle shaft to the trans. The RDU is still always spinning regardless if it is getting power or not.

 

[Ryan Selcer]

The PTU is always spinning and under load. It is directly connected via axle shaft to the trans. The RDU is still always spinning regardless if it is getting power or not.

Theres a BIG difference between spinning and under load dude. And the PTU is just spinning at 90 unless you romp it, then its under load for a few seconds. To really load the PTU you've gotta do a bunch of take offs

 

[Ryan Selcer]

Heat probably

Yeah but that would only indicate that shockproof holds up well to the heat but no actual physical properties as he's not making the fluid really work he's just heating it up

 

[luigisho]

The Castrol does offer courtesy reacharounds via mail in rebates....

buttgames and reacharounds wins the internet today.

 

[SM105K]

Theres a BIG difference between spinning and under load dude. And the PTU is just spinning at 90 unless you romp it, then its under load for a few seconds. To really load the PTU you've gotta do a bunch of take offs

Anytime the trans sees load the PTU see load. They are directly connected. You are also leading people to believe there isn't any load while trying to maintain 90+ mph in a 4300 lb sedan. You will still have wind resistance, large and small grades, and passing other vehicles. My trans maintained an average temp of 201 on my last road trip and spiked at 205. Ambient temp was never below 105, averaged at 109, and spiked at 113 degrees.

Also remember my DPs are wrapped, my splash guard vents are open, my trans cooler is upgraded. So yes heat is a big concern as H.O.E mentioned. Next Cali run in Sept, I am going to remove my engine cover and see what happens.

I have also seen there is a direct correlation between PTU temps and engine coolant temps. Since they are linked. They usually stay within 5 degrees of each other on the PP cars. Other members have PID on their TQ app and that is what they have reported. My car during those 90 mph runs hovers right at 198 degrees. Highest I saw was pulling Coachella grade it spiked to 217. If my PTU is seeing 200 sustained and 220 peaks I would assume that is pretty toasty. Pretty toasted for a long period of time.

There is a huge difference maintaining 70 t0 75 mph in 80 degree weather, 90 to 95 mph in 109 degree weather as well.

 

[SM105K]

Yeah but that would only indicate that shockproof holds up well to the heat but no actual physical properties as he's not making the fluid really work he's just heating it up

Spinning numerous gears within a set at higher rpm, high heat, for a prolonged period of time, isn't making the fluid really work?

Please elaborate.

 

[Ryan Selcer]

Spinning numerous gears within a set at higher rpm, high heat, for a prolonged period of time, isn't making the fluid really work?

Please elaborate.

The PTU is the Power Take Off Unit, so it only does its work during take off. Now they've added the handy dandy on demand AWD so if you start slipping itll also activate youre PTU. However, cruising at 90 mph you're PTU is spinning but no power is being sent to you're rear axle as you wouldnt need it. Like I said if you romp on it yeah you'll send some power to the back but only for a few seconds. I did say you are exposing it to heat alot and that it stands up well to that but its not under any physical load just that heat load so you're chemically breaking down the fluid but not mechanically

 

[Kevin81]

However, since my vehicle is in the shop, this is what I use right now for my rear end. Keeps everything well lubricated.

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It goes down down down that burnin' ring of fire, it burns burns burns, ring of fire, ring of fire...

 

[SM105K]

The PTU is the Power Take Off Unit, so it only does its work during take off. Now they've added the handy dandy on demand AWD so if you start slipping itll also activate youre PTU. However, cruising at 90 mph you're PTU is spinning but no power is being sent to you're rear axle as you wouldnt need it. Like I said if you romp on it yeah you'll send some power to the back but only for a few seconds. I did say you are exposing it to heat alot and that it stands up well to that but its not under any physical load just that heat load so you're chemically breaking down the fluid but not mechanically

Power Take Off Unit? WHAT? wrong. Power Transfer Unit is the correct term. Please learn what the **** you are talking about.

The PTU is always seeing the same power as the trans out put to the front tires. The PTU and passenger tire/hub assembly are directly connected via a drive axle to the transmission. If the front tires are seeing load so is the PTU. It does not switch on and off. It is a gear set, it physically cannot. It is always spinning and always sending power to the rear. ALWAYS.

The RDU coupler is the on and off switch. However it can only transfer IIRC 150 hp to the rear tires. Depending on power demand it is the brain in the Intelligent AWD system.

On the 13+ we can enable the Intelligent AWD gauge. You would be surprised while driving normal you will see the RDU really doesn't activate because there is no need too. When you ask for more then normal power, or your car is sensing your tires are slipping it may send power back but doesn't always. It could slow that wheel with the brake depending on situation. At freeway speeds and just cruising you are in front wheel drive the majority of the time.

The SHO/Flex/ and XSport are front wheel drive bias vehicles with the ability to transfer power to the rear on demand. Hence "Intelligent" AWD.

 

[802SHO]

Well i don't see you guys giving any real comparison. Youre just saying its better than the old burnt out stock fluid....of course it is

I used Royal Purple before and I thought it sucked. My trans seemed to act finicky. With Redline it's been very smooth and good. So that's what I'm comparing it to. I was thinking about Amsoil severe gear oil but for now I have plenty of redline to change it with. I change mine up to 3 times a year. Fluid is cheaper than replacing the PTU or RDU. All of my fluid changes it looks close to new fluid but I'll keep changing it anyway bc it's cheap, easy and I'll dismiss fluid as a culprit for a failure.