[BowtieGuy]

Building a Stronger 6-spd Man Trans - Page 13 - Chevy Sonic Owners Forum

Link doesn't work.

I have been following those changing out the transmission fluid in their manuals for awhile now but was really hesitant as it seemed there wasn't a general consensus on what fluid would actually be considered up to spec for use with our M32 transmissions. But with so many others on the Sonic/other M32 trans owner forums noticing this, even with only DD use, its hard to argue that the Castrol fluid itself is even up to the spec in the first place. The only real problem convincing people is, do we change out the Castrol junk now and risk voiding our powertrain warranties for any possible problems down the road? Or stick with the Castrol fluid until it demolishes our transmissions while it's still under warranty?

EDIT: Is the newer 2012+ GM part number fluid still Castrol? I thought the new stuff was a lighter viscosity than the 2011 part number?

 

[XtremeRevolution]

Link changed for some reason. Here it is:

http://www.sonicownersforum.com/for...m.com/forum/transmission-discussion/6217-building-stronger-6-spd-man-trans.html

I don't know about the new 2012 GM fluid or whether it's any different than the 2011 fluid.

I would change it now. You could keep it later, and have the transmission fail at 110lk or 120k miles and foot the bill of the rebuild. Since we do know of at least two easily obtainable fluids that serve as excellent replacements and are safe for use with the metals found in our transmission, I refer you to my previous recommendation. Change out the OEM fluid ASAP for something of higher quality that has a higher heat tolerance.

 

[Greasemonkey2012]

I'm Gona run fuchs Titan sintofluid 75w80


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[XtremeRevolution]

I'm Gona run fuchs Titan sintofluid 75w80


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Looking forward to a review.

I'm not at all saying it's bad, but for anyone looking to change their fluid, we have successfully tested the Royal Purple fluid that Ryan (OnlyTaurus) used - noted on page 2 - and Amsoil Synchromesh. I would feel safe recommending either of those as a replacement, but certainly wouldn't mind having another option.

To confirm, is Titan Sintofluid safe with the metals used in our transmission? Also, isn't that a tad bit higher viscocity than 75w90? I talked to Hoon, and he noted that the shifting was a bit erratic if you use too thick of a fluid.

 

[EcoDave]

The only real problem convincing people is, do we change out the Castrol junk now and risk voiding our powertrain warranties for any possible problems down the road? Or stick with the Castrol fluid until it demolishes our transmissions while it's still under warranty?

Wait... How the heck does changing our factory transmission fluid void our warranty???

 

[blk88verde]

I'm especially glad I decided to use the Royal Purple MaxGear 75w90 GL-4 after finding this out. I would suggest this fluid to try.

Ordered RP MaxGear 75w90 this evening, picking up tomorrow. I have to say my 2011 ECO MT seems to perform flawlessly at 15.4k miles on it - so far with the factory fill.

 

[Greasemonkey2012]

Looking forward to a review.

I'm not at all saying it's bad, but for anyone looking to change their fluid, we have successfully tested the Royal Purple fluid that Ryan (OnlyTaurus) used - noted on page 2 - and Amsoil Synchromesh. I would feel safe recommending either of those as a replacement, but certainly wouldn't mind having another option.



To confirm, is Titan Sintofluid safe with the metals used in our transmission? Also, isn't that a tad bit higher viscocity than 75w90? I talked to Hoon, and he noted that the shifting was a bit erratic if you use too thick of a fluid.

well in Europe all the guy on the VXR forms their running that fluid and they say its amazing stuff well all the Fuchs product is good stuff

Thats from the Opie oil man

If you use really basic oils then using GL5 instead of GL4 can cause problems, but GL5 oils from reputable companies use the same additive pack as in a GL4, just in larger quantities, so is fine to use in a GL4 application. The Sintofluid 75w-80 is a really good option. I know a couple of people were having real problems with vauxhall gearboxes and the Sintofluid sorted them out. One guy had a vivaro and the gearbox had been replaced twice by the time it hit 60k. When he had the box fitted at 60k, he put in the Sintofluid and it's been fine. He must be on about 120k by now.

http://www.opieoils.co.uk/p-981-fuchs-titan-sintofluid-sae-75w-80-synthetic-manual-transmission-fluid.aspx

 

[XtremeRevolution]

Ordered RP MaxGear 75w90 this evening, picking up tomorrow. I have to say my 2011 ECO MT seems to perform flawlessly at 15.4k miles on it - so far with the factory fill.

If you think it has been performing flawlessly with factory fill, I can't wait to hear what you have to say when you replace the fluid!

well in Europe all the guy on the VXR forms their running that fluid and they say its amazing stuff well all the Fuchs product is good stuff

Thats from the Opie oil man

If you use really basic oils then using GL5 instead of GL4 can cause problems, but GL5 oils from reputable companies use the same additive pack as in a GL4, just in larger quantities, so is fine to use in a GL4 application. The Sintofluid 75w-80 is a really good option. I know a couple of people were having real problems with vauxhall gearboxes and the Sintofluid sorted them out. One guy had a vivaro and the gearbox had been replaced twice by the time it hit 60k. When he had the box fitted at 60k, he put in the Sintofluid and it's been fine. He must be on about 120k by now.

http://www.opieoils.co.uk/p-981-fuchs-titan-sintofluid-sae-75w-80-synthetic-manual-transmission-fluid.aspx

Good info to know. Where are you buying it? I haven't heard of it before here in the US. I did find it on amazon.com, but it's $33 per liter!

Volvo (76-95) Manual Transmission Fluid (1 Liter) FUCHS 75W-80 oil : Amazon.com : Automotive

 

[Greasemonkey2012]

They sell it local store where I live 10$ a litre


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[sciphi]

A word of warning: Whatever synthetic oils are used, make sure they are GL4 and/or yellow metal (brass/bronze) compatible! There are still some old-school GL5 fluids out there that will wreck a transmission calling for GL4 fluid.

Agreed with XR, if you are not having issues with the stock fluid, wait until it's changed out to appreciate the difference.


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[70AARCUDA]

...apparently even GM is aware of metal particles in engines & transmissions:

The Job of Magnetic Drain Plugs

 

[sciphi]

For more reading on MT lubes, MolaKule on Bobistheoilguy.com posted this thread over there in 2009. I feel the first post is applicable to this discussion.

Link to Bobistheoilguy: Synchromesh Manual Transmission Lubricants - Bob Is The Oil Guy

 

[Greasemonkey2012]

Well guys I got the Fuchs Titan Sintofluid 75w80 and the shifting is so beautiful and it's only been a day

 

[Greasemonkey2012]

Heres what used , u can get it this at any VW dealership or any German car dealership or online

 

[SportBilly]

anyone have done the tans cooler??

 

[XtremeRevolution]

anyone have done the tans cooler??

Not an option unless you want to run an inline pump as well.

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