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Old 02-02-2015, 09:10 PM   #1
karlbenz
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nv4500

Looked in my manual, it calls for 75W-85 API GL-4. Will 75w-90 api gl-4 be ok to use? Thats all I can find here local.
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2000 c3500 utility bed 7.4l 5sp manual old body style. Cab and chassis
1964 GMC K10 383cu in/sm465/twin stick np205
1965 Chevy C60
1990 Chevy Bus 8.2l fuel pincher 8800 miles
1993 Ford F350 crewcab 7.3idi nonturbo ZF5 Transmission Running on WMO
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Old 02-03-2015, 06:15 AM   #2
Palf70Step
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Re: nv4500

I would say it should be OK. I also have never seen the 75-85 locally either.
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Old 02-03-2015, 09:02 AM   #3
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Re: nv4500

I always got mine from GM. I think they may be the only place to get the right stuff. It shouldn't make a difference, but I followed GM's recommendations to be safe because I started off with a 100k warranty.
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Old 02-03-2015, 10:15 AM   #4
karlbenz
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Re: nv4500

the manual says equivalent so I'm thinking thats approved? Just called the stealer. $35 a quart, Daaaamn.
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2000 c3500 utility bed 7.4l 5sp manual old body style. Cab and chassis
1964 GMC K10 383cu in/sm465/twin stick np205
1965 Chevy C60
1990 Chevy Bus 8.2l fuel pincher 8800 miles
1993 Ford F350 crewcab 7.3idi nonturbo ZF5 Transmission Running on WMO
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Old 02-03-2015, 11:40 AM   #5
95 S_Trucker
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Re: nv4500

What manual are you using?

My GM Manual calls for Castrol Syntorq LT Trans Fluid

GM Numbers have superseded to Synthetic Manual Trans Fluid #12346190


I would rather spend a little more now than a lot more later.
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Old 02-03-2015, 11:50 AM   #6
karlbenz
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Re: nv4500

The manual that came with the truck
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2000 c3500 utility bed 7.4l 5sp manual old body style. Cab and chassis
1964 GMC K10 383cu in/sm465/twin stick np205
1965 Chevy C60
1990 Chevy Bus 8.2l fuel pincher 8800 miles
1993 Ford F350 crewcab 7.3idi nonturbo ZF5 Transmission Running on WMO
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Old 02-03-2015, 01:27 PM   #7
95 S_Trucker
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Re: nv4500

Hmmmm. Interesting.

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Old 02-03-2015, 01:37 PM   #8
karlbenz
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Re: nv4500

what manual is that?
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2000 c3500 utility bed 7.4l 5sp manual old body style. Cab and chassis
1964 GMC K10 383cu in/sm465/twin stick np205
1965 Chevy C60
1990 Chevy Bus 8.2l fuel pincher 8800 miles
1993 Ford F350 crewcab 7.3idi nonturbo ZF5 Transmission Running on WMO
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Old 02-03-2015, 01:45 PM   #9
95 S_Trucker
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Re: nv4500

That's the factory service manual. 4 volumes. 1800 pages.

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Old 02-03-2015, 01:59 PM   #10
karlbenz
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Re: nv4500

I looked at the 98 owners manual and it said the same as mine except 75w-90 instead of 75w-85. Mine is a 2000 but its the old body style(cab and chassis)
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2000 c3500 utility bed 7.4l 5sp manual old body style. Cab and chassis
1964 GMC K10 383cu in/sm465/twin stick np205
1965 Chevy C60
1990 Chevy Bus 8.2l fuel pincher 8800 miles
1993 Ford F350 crewcab 7.3idi nonturbo ZF5 Transmission Running on WMO
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Old 02-03-2015, 02:03 PM   #11
karlbenz
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Re: nv4500

this is from a 98 owners manual
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2000 c3500 utility bed 7.4l 5sp manual old body style. Cab and chassis
1964 GMC K10 383cu in/sm465/twin stick np205
1965 Chevy C60
1990 Chevy Bus 8.2l fuel pincher 8800 miles
1993 Ford F350 crewcab 7.3idi nonturbo ZF5 Transmission Running on WMO
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Old 02-03-2015, 02:35 PM   #12
95 S_Trucker
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Re: nv4500

That doesn't make any sense why 3 manuals printed by gm say 3 different things.
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Old 02-04-2015, 01:19 PM   #13
karlbenz
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Re: nv4500

same stuff is Cheaper at dodge. $25.70. dodge #4874459 (castrol syntorq)
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2000 c3500 utility bed 7.4l 5sp manual old body style. Cab and chassis
1964 GMC K10 383cu in/sm465/twin stick np205
1965 Chevy C60
1990 Chevy Bus 8.2l fuel pincher 8800 miles
1993 Ford F350 crewcab 7.3idi nonturbo ZF5 Transmission Running on WMO
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Old 02-09-2015, 11:47 AM   #14
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Re: nv4500

Castrol makes the fluid that GM and Dodge attach their own part numbers too. It is the ONLY FLUID approved for use in the NV-4500. DO NOT use ANYTHING other than the approved fluid. Yes, it is expensive but the syncros (among other things) will destroy themselves with a regular off-the-shelf gear oil. Both Amsoil & Royal Purple make something that they claim is compatible. I have personally experienced an NV-4500 with the Amsoil fluid and I can say that it was noisier than one with the Castrol fluid.
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Old 02-09-2015, 09:09 PM   #15
karlbenz
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Re: nv4500

got the castrol from dodge. my brothers friend works in parts dept at a local stealership. got a hell of a deal
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2000 c3500 utility bed 7.4l 5sp manual old body style. Cab and chassis
1964 GMC K10 383cu in/sm465/twin stick np205
1965 Chevy C60
1990 Chevy Bus 8.2l fuel pincher 8800 miles
1993 Ford F350 crewcab 7.3idi nonturbo ZF5 Transmission Running on WMO
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