Anybody Need Iso 460 Gear Lube For A Burke Mill Master Motor.

Gear boxes are very forgiving. Any heavy lube will work fine. Just don't use any of the modern synthetics. Get plain old oil in a heavy viscosity.
 
John Hasler said:
Why?
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Because SOME, not all synthetic transmission and transaxle lubes for many new vehicles such as some Mopar products have additives and chemicals that can react with some metals. They are designed to be used with the exotic alloys used now a days. I was warned about this by the manufacturer when working on my Jeep. Depending on the year. It is best to get plain old oil.
 
Yes, I found a mention of this also while researching the lube specification. Apparently some of the additives (sulphur and phosphorous maybe) added to the oil react with yellow metals - the brass/bronze alloys - that was added the older gear blanks- leaching the copper compounds out of the gearsover time and causing gear failure. The additives were designed to create a better film between modern, high pressure gear designs, but caused the aforementioned breakdown of older style gears. The additives in the last ten years or so have been altered to attempt to overcome this effect. However individual modern lubes are designed for a great many different and unique applications, so as Mark and Bob have said, the old style pure mineral oil based lubes are still the best recommended lube for our old gear boxes.
 
As a follow up note to what Mark and Bob have said, it looks like the proper specification for non -hypoid gear oil is "GL-1" . Gl-1 is straight mineral oil with no high performance additives. This was commonly used in manual transmissions in cars and various machinery up through the early 1960's . Gl 2-5 all have increasing amounts of additives. Definitely do not use Gl-5 rated lube oil as the additives will attack the yellow metals mentioned above. In the PNW, GL-1 is hard to find now, but I did locate some at three suppliers :

-Shell Dentrex 80w-90 GL-1 line oil,
- Tractor Supply carries a 'Ford Tractor all mineral oil GL-1', and
- Napa Auto also shows a one gallon Gl-1 lube oil as a stock item.

At least now I know for sure what I need for the Burke!

Glenn
 
Thanks Mark. Actually I bought a gallon from Napa, as the Tractor Supply store was out of stock.

Now, on to the Van Norman! I suspect I will use the same stuff in it...

Glenn
 
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