amsoil or royal purple- NV 3550 5-speed

[askoop]

for my wife's jeep KJ with 5 speed NV3550, would amsoil MTF or royal purple syncromax be the better choice?

Thanks

 

[RRich]

My NV is REAL happy with RL MTL.

 

[PT1]

I say go with the least expensive because both are good.

 

[unDummy]

Use Amsoil MTF or Redline MTL. RoyalPurple is best for trannies spec'ing an ATF. I believe that the NV3550 requires Synchromesh fluid which is thicker then ATF.

 

[askoop]

I'd like to stay with amsoil or RP for a few reasons...
1- Fellow Jeepers have had the best luck with these two in their nv3550s
2- they meet Chrysler's MS-2994, which I can't find if the Redline does

Nothing against redline, just want to go synthetic while meeting MS-2994.

and yes, the 3550 needs a synchromesh fluid

 

[Pablo]

As stated the RP Synchromax at 7.7 cSt @100°C is too thin for that NV transmission.

Amsoil MTF at 9.6cSt @100°C is a better fit, plus I think the MTF will shift smoother, last longer and provide better protection.

 

[Greaser]

I use the Amsoil MTF in two NV3550 trannies that I own/service and it is a great fluid.