MTF 95 Neon

Joined
Oct 28, 2024
Messages
494
Location
IN
Been digging for suggestions on an MTF for my neon. Most sources say 5w30 Full Synthetic but some people suggest against it and say Synchromesh. “No gear oil” transmission. Would Supertech Full Synthetic 5w30 work or should I pay the extra bucks and pour Mobil 1 in it?
 
Anything I'm seeing online with a quick search says ATF+4.

For what it's worth, I used Mobil 1 5w30 in my 94 del Sol SI way back when thinking it was an 'upgrade' and the synchros hated it. 2nd gear was never the same after that even after it was drained out.
 
Been digging for suggestions on an MTF for my neon. Most sources say 5w30 Full Synthetic but some people suggest against it and say Synchromesh. “No gear oil” transmission. Would Supertech Full Synthetic 5w30 work or should I pay the extra bucks and pour Mobil 1 in it?
Look on the Amsoil website vehicle lookup. Whatever they suggest, I’d go with.
 
Been digging for suggestions on an MTF for my neon. Most sources say 5w30 Full Synthetic but some people suggest against it and say Synchromesh. “No gear oil” transmission. Would Supertech Full Synthetic 5w30 work or should I pay the extra bucks and pour Mobil 1 in it?
What does the Owner's Manual specify?
 
Interesting problem (lifetime fluid therefore nothing specified in the Owner's Manual), can you find a factory service manual? There should be a recommendation in there for the fluid after a major service / overhaul I would hope.
 
A dipstick on a NVG-T350?!?

Interesting.

There is a Chrysler synchromesh fluid, if it's still available. For a while, people wanted to use M1HM10w30 but the formula changed and then people stopped wanting to use it. I don't think too much changed from 95 to 2005 on the T350 transmission. My 04 came with ATF+4 in it and I put Pennzoil Synchromesh as a flush out and then Amsoil MTF after that. Shifting was a little nicer with the MTF. It was noisy as all can be with either fluid in it when it was cold.
 
I watched a YouTube video years ago of the Chrysler engineer Ed Peters speaking why automatic transmission fluid was used and basically it wasn't done because it was the best choice. He seems hyperbole when he speaks but?

 
My vote is for Amsoil or Red Line but for a better price and ease of access I've been using a THF (Tractor Hydraulic Fluid) from John Deere called HyGard LV (Similar to 5w30, winter) or HyGard (10w30, summer). I've only used it in MTs with brass blocking rings and in those I find it works excellent, as good as anything else I've tried.

I know some MT use friction material in the blocking rings instead of brass and they might behave differently. That aside, I always look for a gear/transmission fluid that is GL-4 rated which the Amsoil, Red Line and Deere fluids definitely are.
 
Just drained out the transmission yesterday as part of my engine replacement and the stuff that come out stunk like sulfur so I assume someone put some basic 80w90 GL-5 in it. Is this thing screwed?
 
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