Chevron Delo Gear lube compatable with synthetics?

[RavenTai]

I recently bought a '96 Lexus LX450 (same as Toyota land cruiser (FZJ80)) I have all of its records for service but it has 100K miles so I still want to give the axles and transfer case a good cleaning I was thinking of 2 short OCI's with a quality mineral gear oil and then going with M1 or RL gear lube for the long haul

searched this site and Chevron Delo gear lube has a good reputation but is this borate chemistry comptable with the more standard sulfer adative of the synthetic gear lubes? I do not want the expense of several synthetic changes to get the chevron residue back out

anybody aware of the compatability of these two addative styles?

the truck has factory electric lockers, these are not clutched but steel splined positive lockers so no LS addative needed

it also has full time 4 wheel drive it has a center differential in the transfer case that is dampened by a viscous coulping, the only discription I have of this VC is it works like a touque conveter allowing some diffrence in front and rear drive shaft speed but giving resistance to large diffrences in shaft speed, this VC is bathed in the transfer case lube I have heard this unit can get quite hot at highway speed if the front and rear tires are worn diffrently , in 4-low the center diff is locked similar to the axles

In my research I have not found any references for lube preferences of this VC, any info on this aswell?

sory for the spelling no spell checker on this computer

[ February 14, 2004, 02:02 AM: Message edited by: RavenTai ]

 

[widman]

Delo Gear is totally compatable with the sulfur/phos additive packages, but once you try it I doubt that you will take it out. The only disadvantage is that it doesn't have LS addtives, but as you said, you don't need them in your application.

 

[dkcase]

quote:

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In my research I have not found any references for lube preferences of this Viscous Coupling

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I don't think it's intended to change that. It's a very specialized fluid, and Mucho Mucho expensive. May even be difficult to change.

I don't have any direct experience with such a system... just going by what I remember seeing.

I can believe that different tires revolutions may cause it trouble. Different shaft speeds shearing the fluid is what causes it to "lock." No ?

 

[RavenTai]

quote:

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Originally posted by dkcase:

My comments above are certainly not important enough to repeat three times.

? ? ?

I don't know why that happened.

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that ushauly happens if the server gets slow and you hit the "post reply" button a few time waiting for it

I did some more reading and you are correct the VC is a sealed unit with silicon fluid inside, from previous reading about them I has assumed (incorrectly) that they used the TC fluid

 

[Tim]

btt

I am in your boat...just picked up a '97 LX-450 yesterday.

PO has had Mobil 1 in the differentials and T/C for the past 50k miles (Mobil 1 ATF in the trans, too).

Get this: I was talking with my brother yesterday and he recently had a Toyota technician refuse to put his Mobil 1 gear lube in his TLC diffs. The technician said Mobil 1 causes "chatter" and they don't recommend it. He does not have the lockers...I do.

Is this just their way of selling more gear lube?


I am going to swap out the diffs and the T/C case soon. Does anyone know if Schaeffer's makes a gear lube suited to the TLC? Guess I should probably send them an email...


Tim

 

[RavenTai]

Congratulations on your purchase

I spend a good bit of time on a FZJ80 forum no one has ever mentioned any chatter caused by any gear oil, chatter caused by the wrong fluid is associated with clutch type limited slip units witch we do not have, our lockers are positive locking there is no slip in the steel teeth to cause chatter


Stop by the IH8MUD 80’s section (your 97 LX450 is an FZJ80) a lot of good info and advise for these trucks there


First thing you should look into is the birfields, AKA “Birf” most are needing a repack about now, doing so will save you a lot of $ down the road

Talk to cruiserdan over there he works for a Toyota dealer and gets mud users good prices on Toyota parts, unfortunately he cannot get Lexus specific parts (manuals, interior parts, emblems, phone/audio, glass, ect) most other stuff is identical to the LandCruiser

[ August 15, 2004, 02:14 PM: Message edited by: RavenTai ]

 

[MolaKule]

Perfectly compatible with the majority of mineral and synthetic gear oils.

Most gear oils now include borate esters in their formulations. Chevron was simply the first to develop this technology.