[Frosty]

I know this is supposed to be "lifetime" fluid but Mopar does recommend changing it if the car has been tracked. Not knowing the previous history of my car and being the second owner I don't know if it was tracked or abused on the streets, even though I see a lot of signs saying it was driven pretty hard. As such, I'd like to change it for added piece of mind. Problem is I've tried ordering the fluid (Part number: 68218058AC) from 3 different places of which all have come back and canceled my order stating the fluid is not currently available. So, I ask, what fluid have you used and does anyone know for sure of an alternative to the Mopar ATF+4 that is appropriate for our transmissions? I've see a couple cheap alternatives but I'm not real interested in using a knock off fluid, thus the question here.

Worst case if I have to wait for the Mopar stuff to come back in stock I will but nobody can even give a time table on it.

 

[Blickie]

I know this is supposed to be "lifetime" fluid but Mopar does recommend changing it if the car has been tracked. Not knowing the previous history of my car and being the second owner I don't know if it was tracked or abused on the streets, even though I see a lot of signs saying it was driven pretty hard. As such, I'd like to change it for added piece of mind. Problem is I've tried ordering the fluid (Part number: 68218058AC) from 3 different places of which all have come back and canceled my order stating the fluid is not currently available. So, I ask, what fluid have you used and does anyone know for sure of an alternative to the Mopar ATF+4 that is appropriate for our transmissions? I've see a couple cheap alternatives but I'm not real interested in using a knock off fluid, thus the question here.

Worst case if I have to wait for the Mopar stuff to come back in stock I will but nobody can even give a time table on it.

Scratch this; sounds like you have a M6.
If an A8 Trans & assuming the trans shifts correctly up and down in all 3 Trans Modes, take you car to the dealer. Talk to the Svc Mgr and the Trans Tech. Have them check the current fluid for color and odor. That should give you a better sense of what to do if anything. They may have to check cold so they can access via the pan drain/fill plug and not lose fluid.

 

[baabootoo]

A8 here also.

 

[Frosty]

Yeah, it's the M6. I put my finger in the fill hole last time I had the car on the lift and the fluid is diffidently not red. It didn't feel gritty or anything but it seems pretty dirty, but I have also heard from a couple people that the factory fill oil may not have been red too. Hard to get solid info on M6 fluid from my poor google and search skills :-(

 

[Mbmtncat]

I have a t56 magnum in a 70 nova. Essentially the same transmission. Tremec makes a specific oil to use in this transmission.

 

[Frosty]

I just looked in the SRT maintenance from my owner's manual, and saw no mention of the trans fluid. Diff, only if used in a fleet car, but trans nothing.

You're probably looking at the auto then. Manual says to change every 48 months or 48K miles (screen capture below). From the reading I've seen most say it's still "lifetime" for normal use but should be looked at and changed if the car is tracked. If nothing else I waste $50 on fluid for piece of mind. Just can't seem to find any info on fluid other than MOPAR ATF4 which currently is not available.

 

[OldMoparGuy]

Subscribed. M6 here too and want a fluid flush and fill when the car goes into storage for the winter.

 

[Rockster]

I know this is supposed to be "lifetime" fluid but Mopar does recommend changing it if the car has been tracked. Not knowing the previous history of my car and being the second owner I don't know if it was tracked or abused on the streets, even though I see a lot of signs saying it was driven pretty hard. As such, I'd like to change it for added piece of mind. Problem is I've tried ordering the fluid (Part number: 68218058AC) from 3 different places of which all have come back and canceled my order stating the fluid is not currently available. So, I ask, what fluid have you used and does anyone know for sure of an alternative to the Mopar ATF+4 that is appropriate for our transmissions? I've see a couple cheap alternatives but I'm not real interested in using a knock off fluid, thus the question here.

Worst case if I have to wait for the Mopar stuff to come back in stock I will but nobody can even give a time table on it.

Why not order the fluid? It will come in eventually. Maybe sooner than you think. In the meantime absent any real signs the transmission really needs a fluid change you can continue to drive the car.

If you don't order the fluid it may take a good while before you can find any on the shelf at your dealer. Those who have ordered the fluid will be first in line to receive the fluid they ordered.

 

[thetalonguyh]

Ebay has been really good to me for finding things I can't find at any online suppliers. Just recently got a few things that were sold out everywhere...except ebay.

68218058AC for sale | eBay

Get the best deals for 68218058AC at eBay.com. We have a great online selection at the lowest prices with Fast & Free shipping on many items!

www.ebay.com

 

[Slidd]

I'd probably run this..

https://www.tremec.com/not_am_detalle/mp-mtf-transmission-fluid/

Sent from my SM-N960U using Tapatalk

 

[OldMoparGuy]

All sold out at the Tremec Store.

 

[Xylander]

I'd try ordering the fluid from your dealership's parts counter. A decent parts shop has multiple avenues to get supplies and may have internal regional warehousing stock.

 

[Frosty]

Why not order the fluid? It will come in eventually. Maybe sooner than you think. In the meantime absent any real signs the transmission really needs a fluid change you can continue to drive the car.

If you don't order the fluid it may take a good while before you can find any on the shelf at your dealer. Those who have ordered the fluid will be first in line to receive the fluid they ordered.

That's actually what I tried. Nobody will accept the order/keep it. Every one I make gets canceled.

Ebay has been really good to me for finding things I can't find at any online suppliers. Just recently got a few things that were sold out everywhere...except ebay.

68218058AC for sale | eBay

Get the best deals for 68218058AC at eBay.com. We have a great online selection at the lowest prices with Fast & Free shipping on many items!

www.ebay.com

Thanks. I'll give them a try. Probably the same vendor that serves Amazon (one of the places that CLed my order) but worth a shot.

I'd try ordering the fluid from your dealership's parts counter. A decent parts shop has multiple avenues to get supplies and may have internal regional warehousing stock.

I may try that as a worst case but last I talked to them they wanted nearly double what everyone else was asking for fluids. If I'm going premium $ I'd rather go premium fluid so was hoping someone knew of a good alternative.

 

[Himmelkat]

Bwah, just order you up some Amsoil from their online selector.
If it only points you to the automatic fluid, then:

https://www.amsoil.com/reviews/manual-synchromesh-transmission-fluid-5w-30-mtf/

Yes, that is 5W30. Amsoil is so good, they can have thin oil that still joins "hands across the water" on a molecular level to protect the interface between gear teeth.
How well a fluid holds a sheet sort of behavior when it is stretched thin is a measure of its efficacy. Formerly, that required very high viscosities. Not anymore.

For heavier-duty driving with an increase in viscosity:

https://www.amsoil.com/reviews/manual-transmission-transaxle-gear-lube-75w-90-mtg/

However, bear in mind that this oil is for the most-stressful gear interface configuration: the hypoid gear tooth shape in your rear end/transaxle/final drive, AND your relatively less-stressed helical gear interface in your transmission, so the higher viscosity is primarily aimed at the most-stressed gear mesh: the hypoid gears in your final drive, whether it be in a transaxle or a rear end.

The helical gears are simultaneously sliding, with regard to each other, in one direction. The hypoids in your rear end are not only sliding in the direction taken as they mesh and unmesh, but they also slid ALONG the gear tooth at the same time, thus the extra viscosity. If your rearend was a set of straight-cut gears, then they, too would not need as much viscosity, but the noise level would be phenomenal. There is no gear mesh that produces as much localized stress as a hypoid gear, where the gear teeth are not only meshing and unmeshing, but they are moving in relation to each other along the gear tooth interface, also.

So, for this reason, I think that the 5W30 will be fine for the tranny. It also produces a bit less drag, and due to its reduced viscosity, may access the gear interfaces more effectively. If I were to go full-honk with a build, I would be inclined to gun-drill the shafts, pump oil into them and then selectively drill the gears to keep introducing oil directly between the teeth from the shaft, in a way that took into account the gear tooth numbers, which would hopefully be primer-number-mismatched to make sure every tooth on one gear touches a different tooth on the next gear with every revolution.

I put the 75W90 stuff in my final drive on my Hellcat.

 

[6togo]

I was just going to say most Manuals get 5W30 now a days. I have had had a few rebuilt and the builders always recommend 5w30. I will say they shifted and felt way smoother than gear oil or ATF. Talk with some trans shops like RPM they are a good source to find out.

 

[16GoManGoHC]

Stock Hellcat M6, hands down Mobil 1 Synthetic ATF, will shift like butter. Used it in my stock M6 and put it in a few others Hellcats, they all LOVED IT. What you drain will look black, it’s not red because it’s burnt up ATF, trust me on this. I run Tranzillas now that take synchromesh type fluid and DO NOT use that in a stock Hellcat M6. Mobil 1 Synthetic ATF, get 6 Qts, push a qt through the trans cooler lines to clean all the burnt crap out of it, they disconnect very easy, no tools required.
I also make and sell Super Magnetic drain and fill plugs for the M6, 70$ shipped for the set, PM if interested.

January 18, 2021

Super magnet drain plugs

youtube.com

 

[Frosty]

Stock Hellcat M6, hands down Mobil 1 Synthetic ATF, will shift like butter. Used it in my stock M6 and put it in a few others Hellcats, they all LOVED IT. What you drain will look black, it’s not red because it’s burnt up ATF, trust me on this. I run Tranzillas now that take synchromesh type fluid and DO NOT use that in a stock Hellcat M6. Mobil 1 Synthetic ATF, get 6 Qts, push a qt through the trans cooler lines to clean all the burnt crap out of it, they disconnect very easy, no tools required.
I also make and sell Super Magnetic drain and fill plugs for the M6, 70$ shipped for the set, PM if interested.

January 18, 2021

Super magnet drain plugs

youtube.com

Well heck, I bought some MOPAR yesterday through that ebay link shared above and it actually says it's shipping soon. But if you are saying this is MUCH better I may go that route anyway as you've never steered me wrong before.

 

[OldMoparGuy]

And I just bought. 6 pack of the Royal Purple Synchromax.

 

[motorheadmike]

Me likey:

https://www.amsoil.ca/p/signature-series-multi-vehicle-synthetic-automatic-transmission-fluid-atf/?code=ATFPK-EA

 

[16GoManGoHC]

Well heck, I bought some MOPAR yesterday through that ebay link shared above and it actually says it's shipping soon. But if you are saying this is MUCH better I may go that route anyway as you've never steered me wrong before.

I only profess what I know works first hand, It’s still in my stock trans. Immediate difference in shifting ease even when cold, tranny ran cooler as well. I was told by tranny experts The Carbon Fiber synchro rings in the stock transmissions do not like synchro mesh, it debonds them over time they said. I use the MOBIL 1 ATF mixed with a Qt of GF2000 in my GForce G5 9310 geared built trans in my Capri as well, it shifts so fast snd smooth I was accused once of running a clutched automatic in the stick class lol. I power shift that trans when I’m on it often, it blips through the gears. I was told that concoction works well in the stock TR6060 as well but never tried it personally as I run the RSG Tranzilla’s now that use their SM150 Tranzilla oil, it’s green tinted.