I am going through and working on disco mike's maintenance schedule and I had a couple of questions. I purchashed the 7 quarts of royal purple 85w140 and I was wondering how much lucas should I be adding to each diff and the transfer case. I am also flushing the power steering fluid and was wondering how much lucas to add to that also. I live in the Palm Springs California area which is desert heat if that has anything to do with it. Any help would be greatly appreciated.

 

Put the whole bottle in the t-case and p/s reservoir.

 

If your using full synthetic why even use a additive?
In my humble opinion if you need a oil additive then you need a different oil.
But thats just my 2 cents.

 

WOAAA do NOT use lucas oil additive. DO NOT use LUCAS OIL additive. ONLY the gasoline additive is good.

 

DO NOT ADD ANY ADDITIVE TO ROYAL PURPLE OIL. IT IS NOT LIKE NORMAL OIL IT HAS ITS SYNERLEC TECHNOLOGY. IT DOES NOT NEED AN ADDITIVE.

 

DO NOT PUT IN STEERING ADDITIVE. IT IS NOT NEEDED WHATSOEVER.

 

LUCAS TEST: failed, No tricks.

Royal Purple is an AMAZING oil. just leave it alone.

 

thats some pretty interesting information you have provided us with... thanks
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Because you are going with the heavier 85W/140, no additional Lucas is needed.
As for the power steering, use only 1/2 of the small bottles of Lucas. If you are using any in your tranny without synthetic ATF then use a while bottle of Lucas tranny additive.

 

I wish that I would get emails in my garage. I have already added 1 pint of lucas to both diffs. Luckily I didn't put any in the transfer case. Is it going to be alright with mix in the diffs ordo I have todo another flush ???