Change of all drive gear lubes

[amsoilman]

I just changed out all the drive gear lubes using high quality synthetics. Both differentials took a total of 10 quarts of 75W-90, and the transfer case took a total of 2 quarts of ATF.



I also installed the Mag-Hytec Rear Differential Cover.





Wayne

amsoilman

 

[Prairie Dog]

Wayne, How much extra oil does the Mag-Hytec cover allow?

 

[PLaFrombois]

Wayne, Did you get the 6-speed, or the Auto? What lube do they recommend for the 6-speed?

Thanks

Paul

 

[Pit Bull]

Originally posted by amsoilman

I just changed out all the drive gear lubes using high quality synthetics. Both differentials took a total of 10 quarts of 75W-90, and the transfer case took a total of 2 quarts of ATF.



I also installed the Mag-Hytec Rear Differential Cover.





Wayne

amsoilman

Wayne just curious?? What brand of high quality synthetics did you use? :-laf

 

[Gary - K7GLD]

"Wayne just curious?? What brand of high quality synthetics did you use?"





POT-STIRRER!

 

[Pit Bull]

Gary, it's like those questions Jay Leno uses on his man on the street interviews. "Who is the Washington Monument named after?" "Who's buried in Grants tomb?"

 

[amsoilman]

PLaFrombois,

Amsoil Inc. recommends using the HDD, XLF, or ASL for the Chrysler MS-9224 Spec. These are 5W-30 oils.





Wayne

amsoilman

 

[PLaFrombois]

Wayne

Thanks for the info.

 

[jimnance]

I understand that the transfer case, transmission, and differentials already come with a high quality lubricant. Given that all these units are very trouble free using MOPAR lubricants why would someone want to change them????



Pot Stirrer

 

[jimnance]

BTW, 75,000 trouble free miles on my '99 using dino lubricants. I use high quality Chevron Delo 15W40 for the engine, and MOPAR fluids for the transmission and transfer case. When I changed the Differential gears I used GM synthetic lubricant because it was apart anyway.



I still go the 5,000 miles between oil changes without adding oil.



I LOVE my dino oil.

 

[Fireman]

Wayne,



Where did you get the Mag-Hytec diff cover? Did you use one intended for a for a for a Ccchhhhhhhhevy ?



Fireman

 

[Pit Bull]

Originally posted by jimnance

I understand that the transfer case, transmission, and differentials already come with a high quality lubricant. Given that all these units are very trouble free using MOPAR lubricants why would someone want to change them????



Pot Stirrer

Probably the same reason I take all of these stupid vitamins. Just in-case and you are right about pot stirrer, lubricants are a religious subject on this site :-laf



PS Good try on the stirring

 

[Gary - K7GLD]

Right or wrong, *I* always prefer to change all drivetrain lubes in a new vehicle VERY soon after purchase - engine oil especially.



I'm distrustful of the likelihood every bit of small machining particles being removed prior to final assembly - and am convinced early operation of new components provide increased wear and shedding of wearing-in metals - I simply wanna get that stuff outta there, and use VERY accellerated oil/lube changes during the first few miles - I've changed my engine oil 3 times so far in 6000 miles - and both transmission and differential - it's just cheap insurance!

 

[Prairie Dog]

Given the fact that Dodge is trying to cut every corner (things like underhood lights, fabrics, paint, etc. ), I don't really trust them to put the best lubes in it. Most likely they are just good enough to limit their "cost of poor quality" (warranty $).

 

[jimnance]

Having owned and operated a trucking company for fifteen years I understand a few things about the economics of owning and maintaining trucking equipment. About 80% of our fleet is Cummins Engined.



High quality petroleum based lubricants generally provide the best bang for your buck. Sure, changing lubricants every 2,000 miles and putting in expensive synthetics will extend the life of your components. The question is whether the economics of doing so make sense. The general answer is no.



The use of synthetics in gearboxes especially rear ends is gaining greater acceptance. Primarily as a way of extending the change interval.



We change our dino based gear oil once a year or an average of every 100,000 miles. We typically turn our trucks over once they reach 600,000 to 650,000 miles. We rarely need to do any significant work on the engines or drive lines.



We do change our engine oil significantly more often than the typical fleet. Our spec is a minumum of every 7,500 miles and a maximum of every 10,000 miles. With today's trucks a more common interval is every 15,000 miles.



The use of synthetic engine oil is IMHO highly overarted in terms of what it will do for your engine. With that said, our TDR's are not commercial vehicles and many of our decisions on what we do with them are not based on operating economics.



Pot Stirrer

 

[Prairie Dog]

Nicely put Jim, I used synthetics in my 93 CTD but Iv'e come to realize that if these things get better than 400,000 between overhauls - it's good enough for me. I mean, I don't intend to drive this thing a million miles so I'll just go on putting synthetic in everything but the engine. I'll change the oil in it every 3K and it will last longer than I will ever need it. By the way, I intend on driving it for 20 years!

 

[pkennedy]

Jim you say that you run a fleet of class 8 trucks and dont find any economical sense in synthetic oil use. I will assume if they are Cummins powered that you also use Eaton or Meritor/Rockwell components and if this is true most/all your trucks came with synthetic oils in them except the engine. If also you were to look at the warranty closely you will find that certain components have no warranty under certain conditions of use without synthetics. DC will also forfiet the warranty on certain components as well if not in compliance of specs. Do you think that maybe they recommend a more expensive, atomically perfect and engineered oil for use in their products to reduce warranty costs or are they less than or equal to the cost of better lubricants. Sorry Jim I could not stay quiet on this one but if there is something you know that all the manufacturers and other fleet owners don't know market it now. You may as well retire early with the proceeds because the profit margin in trucking is a joke and the drivers wages coincide with them. PK

 

[amsoilman]

Prairie Dog

The rear end ended up taking 7 Quarts and the front took 3 quarts. The repair manual shows 7. 65 Pints for the rear differential, which would be about 4 Quarts, so I gues the Mag-Hytec cover allows for 3 extra quarts.



The truck seems to roll much easier now!





Wayne

amsoilman

 

[amsoilman]

JimNance,

I understand that the transfer case, transmission, and differentials already come with a high quality lubricant. Given that all these units are very trouble free using MOPAR lubricants why would someone want to change them????

For the same reason you installed all your aftermarket goodies, For better performance!





Respecfully,



Wayne

amsoilman