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V8 Dakotas
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Mike
Dodge Dakota
JOIN HERE
1/18/2002
20:59:29
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 Subject: Fluid change
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Message:
I'm planning to put synthetic fluids into my truck as it finally as 10,000
Km on it. I want to change the tranny, diffs, and crankcase. In the
crankcase I will use Mobil1 as I can get that locally at a few places and
don't need to order it every time I want to change the oil. As for the
others, I want to use Amsoil. On Amsoil's site, they say "AMSOIL gear oils
are formulated with friction modifiers for limited slip differential
applications. There is no need to add limited slip or additional additives"
(http://www.amsoil.com/products/gearlubes/index.htm). Is this true? Which
of the gear lubes should I use? 75W-90, 80W-90? 85W-140? Anyone know what
the difference between the regular and "Series 2000" lubes are?
Looks like Amsoil only has one ATF so that is easy to figure out. If anyone
can help out with the gear lube I would really appreciate it.
Also, when I change the gear lube, is it necessary to take off the cover and
remove the oil or can I just drain and fill?
Also, does anyone know the capacities of the tranny and diffs?
Thanks,
Mike
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Tactical
Dodge Dakota
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7/24/2002
16:56:44
|  RE: Fluid change
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Message:
The trans. capacity is 5 quarts and 5 for the torque converter. The differential fluid I use is 75w-90 Series 2000. You can use a suction pump to pull the fluid out and refill with the Amsoil if the gasket is still in good shape. I use Amsoil 10w-40 with the SD filter, ATF, Series 2000 gear lube, Air filter, and Antifreeze from Amsoil. My 4.7L has a Jet chip, 180 degree thermostat, and Bosch plugs as well.
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AmsoilSponsor
Dodge Dakota
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7/24/2002
19:07:39
|  RE: Fluid change
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Message:
Mike,
Series 2000 is latest introduction from Amsoil offering a higher level of performance vs. Amsoil's regular gear lube. They start with a different base stock with a special additives package. Amsoil could have discontinued the regular gear lube but contine to carry it due to its popularity.
As to whether you should use 75w-90 or 75w-140, personally I would use the synthetic 75w-90 since synthetic 75w-90 will perform above and beyond the recommended petroleum 75w-90.
I have Freightliner customers driving Class 8 Tractor Trailor Trucks using 75w-90 synthetic gear lube in their difs. Tuff enough for them ... Tuff enough for me.
AMSOIL PRICING (current as of July 2002)
Series 2000 75w-90 $9.20 Qt. / 75w-140 $12.05 Qt. retail.(preferred customer $7.20 / $9.35 respectively). You can become a preferred customer for $20 per year ($10 for a 6 month trial) and receive up to 25% off retail pricing.
I "believe" that GM charges over $13.00 for a quart for Goodwrench Synthetic 75w-90 GL-5 gear lube.
In response to:
"AMSOIL gear oils are formulated with friction modifiers for limited slip differential
applications. There is no need to add limited slip or additional additives" Is this true?
Yes this is true, and I will post information regarding this next.
Steven Roark, Amsoil Dealer, Proud Sponsor of DodgeDakotas.com
AMSOIL Synthetic Motor Oils, Lubrication, Filtration, and Truck Care Products
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Big Blue QC
GenIII
7/25/2002
08:01:08
| RE: Fluid change
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Message:
Mike, you did not mention what type of motor/trans you have, not sure if it would make a difference. Mine took 14 quarts of ATF when the trans was completely flushed. 5 quarts of gear lube if you have a 4x4 since there are two that need to be drained/sucked out and filled. If a 4x4, you will need another 1-1/2 quarts to suck out and re-fill the transfer case. If you are going thru the trouble of using AMSOIL fluids for most of the items, why not use the oil also, unless you enjoy having to do an oil change every 3000-4000 miles. Good luck!
2002 QC 4x4 Sport Plus, 4.7L, auto, Patriot Blue, Tire & Handling group,
Heavy Duty Service group, Leer cap w/out windows, Mopar Step bars and roof rack, Rhino liner in bed and on step bars, Pace Edwards Power Tailgate lock
3.55 rear, 4-wheel anti-lock brakes, all possible fluids are AMSOIL
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LSett
Dodge Dakota
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7/25/2002
08:25:03
| RE: Fluid change
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Message:
When you guys say suck the fliud, I though you just pulled the covers to drain the fluid. I'm doing a change this weekend and want top be prepared. Thanks
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Big Blue QC
GenIII
7/25/2002
10:17:46
| RE: Fluid change
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Message:
You could suck the fluid out with a suction pump by just removing the fill hole plug. Removing the cover is another option, it allows you to really clean out the case assuming there are lots of crud/shavings in there. Just use the right sealant and enough sealant to put it back on otherwise you will be doing it all over again when it starts leaking. I don't know what that is, I would venture a guess and say silicone. Could actually be a gasket, but I doubt it. Good luck!
2002 QC 4x4 Sport Plus, 4.7L, auto, Patriot Blue, Tire & Handling group,
Heavy Duty Service group, Leer cap w/out windows, Mopar Step bars and roof rack, Rhino liner in bed and on step bars, Pace Edwards Power Tailgate lock
3.55 rear, 4-wheel anti-lock brakes, all possible fluids are AMSOIL
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Ram 1500 Box
Dodge Dakota
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2/08/2003
18:42:39
|  RE: Fluid change
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Message:
There are many good synthetics out there, and your choices are good ones. As for differential fluid, if you open the case up, be aware there is a special TSB concerning the sealant (TSB 03-08-00) used to button it back up. And make no mistake here, there IS A difference in sealants. The best grade for usage, especially in this colder season is the same as extreme heat...75W-90. The corporate rear axles take 4.5 pts, and the front if 4X4 is 4.8 pts. Limited slip Trac-lok and Vari-lok axles require Chrysler Friction Modifier 4318060. (This applies to rear axles ONLY)
The real issue with not using friction modifier, you will hear "popping" coming from the rear axle on turns, especially close hard turns. If you hear this after using any aftermarket GL5 approved fluid, get yourself the friction modifier from the local Dodge boys.
Have fun
D.M.Box - ASE Certified Master Technician
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Chip
Dodge Dakota
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2/08/2003
23:48:32
| RE: Fluid change
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Message:
Yup; make sure to use Mopar VU01527 for the sealant for diffs & tranny pan (although the reusable rubber Mopar gasket is a much better choice for the tranny pan).
Mopar friction modifier (no more than 4oz per diff) should be used in rear LSD equipped diffs only, if chatter/popping/clunking is heard.
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Matt01RT
Dodge Dakota
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2/09/2003
12:23:35
| RE: Fluid change
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Message:
I changed my rear end fuild to synthic. I work at a chevy dealership...so i used there fluid. Everyone said not to use a sealent. So i did my recearch and found a fel-pro gasket that is a perfect match. If you want i will post the part number.
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robert
Dodge Dakota
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10/26/2003
22:22:59
| RE: Fluid change
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Message:
I just purchased a 99' Dodge Ram 2500 Cummins 24 valve truck. I am trying to check all of the fluid levels on it and do some standard maintenance on it. My questions is, if I pull the rear differential fill plug on the case, how full should it be? I think it should be level with the bottom of the hole? Is this right? Thanks for the help.
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Chip
Dodge Dakota
JOIN HERE
10/27/2003
00:23:55
| RE: Fluid change
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Message:
robert; congratulations on your new Ram; yup, just barely trickling out the fill plug hole will be just fine.
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AmsoilSponsor
DakotaEnthusiast
10/27/2003
08:40:00
| Amsoil Gear Lube = www.american-synthetic-oil.com
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Message:
FYI - Gear Lube Information:
High quality gear oils must lubricate, cool and protect geared systems. They must also carry damaging wear debris away from contact zones and muffle the sound of gear operation. Commonly used in differential gears and standard transmission applications in commercial and passenger vehicles, as well as a variety of industrial machinery, gear oils must offer extreme temperature and pressure protection in order to prevent wear, pitting, spalling, scoring, scuffing and other types of damage that result in equipment failure and downtime. Protection against oxidation, thermal degradation, rust, copper corrosion and foaming is also important.
AMSOIL Series 2000 Synthetic 75W-90 Gear Lube delivers unbeatable protection and fuel economy (independent testing shows class 8 vehicles with AMSOIL Series 2000 Synthetic 75W-90 Gear Lube in the differentials obtained up to 4.83 percent more mpg than vehicles equipped with another popular gear lube). Amsoil Synthetic Gear Lube has the film strength required to deliver all the protection heavy-duty and high-stress applications need in a fuel-saving viscosity grade. AMSOIL Series 2000 Synthetic 75W-90 Gear Lube is recommended for use in all passenger vehicles, commercial trucks and race vehicles.
AMSOIL 75W-90, 80W-90 AND 85W-140 Gear Lubes exceed the lubrication and performance requirements for gear boxes where API MT-1, GL-4 or GL-5 lubricants are specified.
__________________________________________________
AMSOIL Slip-Lock Differential Additive
Effectively Eliminates Gear Housing Chatter
When making a turn, the outer wheels of a vehicle must travel faster than the inner wheels. It is up to the differential to act as a balance arm, establishing constant equilibrium of torques and forces between the left-hand and right-hand driven wheels. In standard (or open) differentials, power is directed to the wheel offering the least resistance. This works well when making a turn, but in a situation where one wheel is lifted off the ground, it causes the suspended wheel to turn while the other remains motionless.
Limited-slip (or positraction) and locking differentials are traction-increasing devices. Locking differentials transfer all available torque to both wheels. The teeth of the spider assembly engage with those on the locker clutch, causing both axle shafts to operate as one. Locking differentials don't allow one drive wheel to spin while the other remains stationary. Instead, they keep both wheels in drive mode, but unlock to permit different wheel speeds when turning. The engaging and disengaging of the teeth on automatic locking differentials often causes a banging and clunking sound. Manual locking differentials usually use an electric motor or vacuum diaphragm to engage the locker, reducing this noise.
Limited-slip differentials allow different wheel speeds when turning, but when one wheel loses traction, greater torque is transferred to the wheel offering more resistance. Limited-slip differentials make use of friction between clutch plates, as opposed to the meshing teeth employed by locking differentials. Transferring less torque per side, limited-slip differentials are generally smoother and quieter than locking differentials, but still sometimes "chatter" when transferring torque to the wheel with traction.
In some differential applications, a friction modifier additive is necessary to reduce chatter. AMSOIL Slip-Lock Differential Additive is formulated with advanced friction modifiers and is designed to eliminate gear-housing chatter in cars, trucks and SUVs equipped with limited-slip, positraction and locking differentials. It also reduces the banging and clunking associated with automatic locking differentials.
AMSOIL Slip-Lock Differential Additive is formulated for use with both synthetic and petroleum gear lubricants and safely replaces manufacturer recommended friction modifiers. Its convenient flip-top dispenser provides quick and easy application to the gear housing. One four-ounce bottle of Slip-Lock treats differential capacities of two to four quarts. It is not for use in automatic transmissions or other applications requiring ATF.
*** NOTE: AMSOIL Synthetic Gear Lubes DO NOT require the use of this additive. However, not all differentials respond the same and if chatter is noticed, the addition of AMSOIL Slip-Lock will eliminate it. For chattering differentials not running AMSOIL Gear Lube, this product is an excellent solution to the problem.
__________________________________________________
For those of you thinking of changing your own fluids (DIY) ...
Helpful Differential Recommendations:
-Flush (drain) as much of the old fluid out.
-Differential fluid capacity depends on ring gear and axle housing size.
-Do not over/under fill differential. This could mean a capacity difference of a quart or more and may cause overheating problems. (See the owner’s manual for proper fill level)
AMSOIL gear oils are formulated with friction modifiers for limited slip differential applications. There is no need to add limited slip or additional additives. If you choose a different manufacturer than Amsoil ... fine by me, just offering my services.
-After changing the differential fluid, drive the vehicle in 7 or 8 figure eight turns, so the new lubricant can work its way into the axle assembly.
Synthetics provide the long-lasting protection, fuel efficiency and dependability needed for top performance, even extreme-pressure conditions. Stays fluid in cold temperatures for easy cold-weather shifting.
-------------------------------------------------
Amsoil Series 2000 75w-90 is excellent for use in passenger cars and trucks requiring a GL-5 gear lube, including those with limited slip differentials.
__________________________________________________
Interested in requesting a FREE Amsoil Catalog click the following link.
Thank You,
Steven Roark , Amsoil Dealer , Proud Sponsor of www.DodgeDakotas.com
AMSOIL Synthetic Motor Oils, Lubricants, Filtration, and Truck Care Products
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