Oils to be used

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Active Link

http://www.youtube.com/watch?v=K4JhruinbWc

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For what it’s worth, the products descriptions section of the lube oil products in the “Restoration Supply Company”” catalog purports to answer all these questions. I am currently using their steering box lube and water pump lube in a non-Pierce car. OK so far.”

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Thank you David for the anti-freeze explanation and the link to AACA site.

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Dear George and David,

You mentioned that you were looking for 600W oil. There is an antique parts store near me that specializes in Model A parts called Bratton’s. They sell a 600 W oil (http://www.brattons.com/600-w-oil-for-rear-axle-steering-or-transmission.html). Is this what you are looking for?

Robert

P.S. The active link does not seem to go to the 600W oil, only their home page, so I put in the text and as an active link.

http://www.brattons.com/600-w-oil-for-rear-axle-steering-or-transmission.html

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Robert,

Thanks for the info. This might be suitable oil, but not enough information is provided. Most of the companies that sell a 600w equivalent buy a larger quantity from an oil distributor and then repackage it in a smaller bottle. The problem is, there is no Product Data Sheet available on the website to see what it really is. What kind of oil is it? Is is safe for yellow metals? Maybe, but no way of telling without the data sheet. Perhaps a call to ask them would provide the information.

The web page says it is SAE 140 which is heavy for a modern EP oil, but would be a lighter weight of Compounded gear oil. Many of the rear axles in older cars have felt seals that tend to leak with lighter oils and people like to use the heaviest weight possible in the differential to prevent leaks. Compounded oil also comes in SAE 190 and 250.

Transmissions are a different story. How the transmission shifts is dependent on the viscosity of the oil. I tend to prefer the shifting when I use the SAE 190 gear oil. Others prefer a heavier oil to slow the gears down quicker when shifting. Personal preference.

The Phillips Compounded Gear Oil in ISO 1000 (SAE 250) is what both George and I are looking for. The manufacturer PDS lists it as suitable antique auto gear boxes with yellow metal. I live in a rural area and the only Phillips distributor near me doesn’t want to buy 55 gallons to sell me 5. He has little to no demand for it. Understandable. I am going to contact some distributors in the Bay Area and see if one has or is willing to get some.

Sorry for being so long winded.

Dave

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Texaco Thuban SAE 250 or equivalent should be available at a farm supply store.

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