- SSDiesel Supply, an SSDiesel Supply Company

Go Back > Drivetrain

Thread Tools Display Modes
Old 07-17-2007, 10:01 AM
Hooter Hooter is offline
Junior Member
Join Date: Dec 2006
Location: Springfield, IL
Posts: 9
Default '94 5 speed trans fluid recommendation

Now that my PMD is fixed, gonna start servicing the beast. Aside from the high dollar GM synchromesh fluid, is there a good alternative to this that I can put in my dually 5 speed with the granny low? On my '92 truck with a V6 and 5 speed, this was the only stuff that would work and shift well. I tried auto trans fluid, Mobil 1 oil, gear oil, etc. I think this trans in my diesel holds a lot and looking to lessen the expense if possible.
Reply With Quote
Old 07-18-2007, 08:33 PM
hraney's Avatar
hraney hraney is offline
Senior Member
Join Date: Dec 2006
Location: NE Texas
Posts: 270

When I had my NV5000 overhauled several years ago I was told the synchronizers were nylon and would not hold up w/o the GM fluid. I had some synthetic fluid we used in our OTR truck but the numbers didn't quite match up. I bit the bullet and got the GM fluid to preserve the warranty. On something like the tranny that is going to take quite a bit of abuse, I'd think it would be cheaper in the long run not to skimp on the fluid.
Good...Cheap....Fast.... you can have any two.
'97 CC K3500 dually. Turbomaster (NO VAC PUMP);SSD Intake;3"downpipe;4"exhaust;SSD PMD;Class V Receiver hitch; Folding GN ball;air bag helpers on rear
Reply With Quote
Old 07-19-2007, 04:45 PM
TAZZ9963's Avatar
TAZZ9963 TAZZ9963 is offline
Join Date: Dec 2006
Location: the left side of massachusetts
Posts: 70

I use AMSOIL for all my fluids in the truck and I am very happy with my choice.
1996 K2500 6.5TD, 4" stainless steel exhaust, stock injectors, AFE cold air intake, FSD Heat-Sync and #7 resistor, Turbo-Master waste gate controler, Heath ECM, Autometer Sportcomp II EGT and Boost gauges, 15PSI Max. Boost
Reply With Quote
Old 09-12-2007, 08:15 PM
sootjunkie65 sootjunkie65 is offline
Join Date: Sep 2007
Location: woodstock, CT
Posts: 31
Default tranny fluid

I still like royal purple fluids- theyre expensive around 11 bucks a quart but you get really smooth shifts plus it has the additive in it that the tranny requires
1993 GMC 2500 4x4 Reg. cab long bed
NV 4500
265/75/16- Goodyear Wrangler ATS
3" downpipe, 4"exhaust
K&N Intake
Homemade Headache Rack
Homemade front light bar
Solid flywheel conversion. W/ LUK clutch

Coming Soon ( Maybe?)
Marine injecters, Tach, EGT/Boost gages, 4x4 Posilock, Solid axle swap ( kinda cancels out the posilock but its wishfull thinking), Air locker in 14 bolt rear, W/ auxillery air tank.
Reply With Quote
Old 09-13-2007, 01:08 AM
triplebr1 triplebr1 is offline
Join Date: Jan 2007
Location: Golden Colorado
Posts: 35

i agree with the royal purple, that is what i put in my nv4500, afer it was rebuilt, i love it it shifts smooth, and i have royal purple in evey other gear box too, also if you spend the money now you will not have to change it for a long time so just a thought
94 k3500 crew cab, marine inj, home made wastegate controller, 4inch, perf. air intake, 80hp chip, gauges, 5speed, pmd cooler with #9.
Reply With Quote
Old 09-19-2007, 03:12 PM
Craig Craig is offline
Senior Member
Join Date: May 2007
Location: Florida
Posts: 107

The the tranny fluid is a special lube to take the pounding the diesel engine hammers through the drivetrain. It helps obsorb the impact of the high torq low rpm pulses this engine dishes out. My Manual recomends the GM or Castrol product. I have never seen the exact Castrol product on the shelf. My friend with the same tranny in his Dodge could only find it at his Dodge Dealer. I like other brand product (I used to sell Royal Purple products, good stuff), but in this application, personally, I would only use what the manual says.

1994 2500 Ext Cab Long bed 4x4. F code. 165k. NV4500 - - 3.42 gears (originally 4.10). 17" H-2 wheels (265/70/17 Michelins), Remote FSD , K&N, Chip, Down pipe (3" tapering to 31/2"), no cat., 4" exhaust w/flow though muffler. New in July 2007: engine (6.2 block), ARP head studs, ceramic coated pistons, H1 oil pump, stock cam, 21:1 compression...), Lift pump, filters, lines, hoses... Non EGR Intake, Mechanical Boost Master (12psi), deleted vacuum pump, Boost and EGT gauges.
Reply With Quote
Old 09-20-2007, 05:22 PM
synthetic-oil synthetic-oil is offline
Junior Member
Join Date: Apr 2007
Location: Texas
Posts: 22
Default 5 speed trans fluid recommendation

Try AMSOIL. NV3500 is amsoil part # MTFQT and it is 6.60 a qt, and the NV4500 is amsoil part # MTGQT for $9.90 a qt

Reply With Quote
Old 09-30-2007, 06:25 AM
grvrjr's Avatar
grvrjr grvrjr is offline
Senior Member
Join Date: Dec 2006
Location: Florida, Palm Beach County
Posts: 443

I think royal purple is the best choice also. Amsoil & Redline also make very good synthetic trans. oils also but royal purple in my area is the easiest to find. But any one of these brands will work just fine.
Reply With Quote
Old 11-24-2007, 09:51 PM
GM Guy GM Guy is offline
Senior Member
Join Date: Mar 2007
Location: NW Kansas
Posts: 117

On PTO Cover, there should be a decal listing GM and Dodge oil part numbers. We have a Chevy/ Dodge dealer close by, and they only carry the Dodge oil @ $15/qt. don't carry the GM oil because it's about $22/qt and is the same stuff.

We personally use Royal Purple. On Royal Purple Web site, there is a comparison chart. GM PN 12346190 is equivalent to Royal Purple Max-Gear 75w90.

On your V-6 5spd 1500, the fluid is thinner, the Royal Purple equivalent is Sychromax
99 Chev C3500 6.5L NV4500 14 bolt 2wd 4.10 130K
96 GMC C2500HD 6.5L NV4500 14 bolt 2wd 3.73 240K
95 GMC C2500HD 6.5L NV4500 14 bolt 2wd 4.10 135K
95 Chev C3500HD 6.5L NV4500 D80 2wd 5.13 132K
94 GMC C2500HD Burb 6.5L 4L80E 14 bolt 2wd 3.73 300K
91 GMC C1500, 6.2L SM465 10 bolt 2wd 3.42 59K
91 Chev C1500 4.3L 5LM60 10 bolt 2wd 3.42 ??K

See other forum for complete signature

Last edited by GM Guy; 11-24-2007 at 10:18 PM.
Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -4. The time now is 07:47 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.