NV 4500 Manual Tranny Fluid - Dodge Cummins Diesel Forum

94-98 Drivetrain (except engine) Tech articles dealing with the transmission, transfer case, axles, driveshafts, etc.

 
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post #1 of 1 (permalink) Old 11-30-2011, 01:56 PM Thread Starter
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NV 4500 Manual Tranny Fluid

The only long term proven lubes to use are Castrol Syntorq LT(not Syntech or Syntorque) or Amsoil MTG.
Fill to the bottom of the fill hole, no higher, about 5 quarts.

Any other lubes including synthetics are well proven to eat your carbon fiber syncros like acid.
Royal Purple and Redline are a couple that definitely eat syncros.

Castrol Syntorq is pricey unless you call these guys> Blumenthal - Blumenthal Companies Home (888) 236-4800
$52 for one gallon and a quart
or you can pay $22/quart at the dealer for Mopar Synthetic Manual Transmission Lubricant, Mopar P/N 4974459

No auto parts stores sell Syntorq but they will sell you something they say will work that doesn't.
Destroyed syncros often don’t show up for 20-50k miles with the wrong fluid.
That’s why you should be skeptical when someone says they’ve been using Brand X for months without any problems.

Read this> NV4500FAQ


Bill
'95 2500 4wd auto
'95 3500 5 speed heavy hauler
Stock for one day

Last edited by illflem; 04-24-2013 at 07:30 PM.
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