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  • flathead4
    replied
    If you follow your original link, there are alternatives to the Mobil DTE. The Phillips 66 brand has similar properties if you look at the product data sheet but only $58. The copper corrosion property is even claimed to be better than the Mobil brand. The description is broader for the Phillips and states "enclosed gear drives." So probably pretty much the same stuff as the more expensive Mobil.
    Last edited by flathead4; 02-26-2020, 01:32 PM.

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  • Doozer
    replied
    Vactra is way oil.
    It has tackafiers.
    If you use Vactra on gears,
    it acts like it has a higher viscosity
    and will climb the gears.
    While this sounds potentially like a good thing
    one problem is that if the machine has labyrinth seals
    the oil will climb up and come out the seals.
    This is a real problem with machine tools.

    If the manufacturer wants you to use ISO68 oil
    one aspect of specifying that is how it will climb in the gearbox.
    If you use the proper weight oil with a tackifier, you will find it
    climbs the gears more than the design requirement intended.

    One example of specifying oil weight for it's climbing ability,
    is my 17" Colchester lathe. Someone had put ISO68 oil in it
    and it would fling oil out the labyrinths from the spindle bearings.
    When I changed to the proper ISO32 oil, the oil flinging had stopped.

    And take the advertising of oil manufactures with a grain of salt.
    They are written for people who know little or nothing about oil
    to attempt to make an oil selection for their needs.
    Notice the verbiage used contains a lot of adjectives and
    not many quantitative values. Red flag there.

    -Doozer
    Last edited by Doozer; 02-26-2020, 09:12 AM.

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  • outlawspeeder
    replied
    Originally posted by reggie_obe View Post
    You are not considering the ISO 68AW hydraulic oil?
    Mobil Vactra Oil Number 2 (ISO 68) ??? No 2 is Mobil's ISO 68AW? or not? I don't know for sure...

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  • reggie_obe
    replied
    You are not considering the ISO 68AW hydraulic oil?

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  • outlawspeeder
    replied
    It is closer to 4 tons.

    Dozer... Never thought about the smell. (good call)

    Gargoyle DTE Heavy Medium or Equivalent (Saybolt universal viscosity 300-325) This converts to about a 65 viscosity?


    Mobil Vactra Oil Number 2 (ISO 68)
    The Mobil Vactra Oil Numbered Series is carefully formulated from high-quality base stocks and performance balanced with an advanced additive system that provides controlled frictional properties, compatibility with aqueous metal working fluids and corrosion protection of parts and equipment. The unique additive package provides exceptional frictional properties on a wide variety of way materials, including steel on steel and steel on polymer, reducing stick-slip and chatter. This allows smooth, uniform motion at design travel speeds enhancing machine productivity and accuracy helping to prolong tool life and enhance surface finish. The Mobil Vactra Oil Numbered Series has been optimized to provide separability from many aqueous coolants while minimizing the corrosive effects of high pH coolants on lubricated surfaces.
    • Mobil Vactra Oil No. 1 and No. 2 are recommended for horizontal slideways on small to medium size machine tools. They are also suitable for circulating application in large machines and as a moderate duty hydraulic fluid.


    Mobil DTE oil Heavy Medium
    Mobil DTE Oil Heavy Medium is a premium performance ISO Viscosity Grade (VG) 68 circulating oil. DTE Oil Heavy Medium is designed for use in steam and hydro turbine sets, bearings, pumps and other systems where long service life is required. It is formulated from highly refined base stocks and an additive system that provide extremely high levels of thermal and chemical stability, rapid separation from water and excellent rust and corrosion protection. Additionally its air release properties help to make Mobil DTE Oil Heavy Medium an excellent choice where ISO VG 68 double inhibited R & O oils are recommended.

    MOBIL DTE 26 (ISO 68)
    Mobil DTE™ 20 Series oils are high performance anti-wear hydraulic oils.They meet the stringent requirements of hydraulic systems using high pressure, high output pumps as well as other hydraulic system components such as close clearance servo-valves and numerically controlled (NC) machine tools. These products met the most rigorous performance requirements of a wide range of hydraulic system and component manufacturers, allowing use of a single product with excellent performance characteristics.



    All are 68 viscosity. DTE is for turbines, Vactra is designed for cooling, DTE 26 states its for numerically controlled (NC) machine tools...


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  • Doozer
    replied
    Seems about right.

    -D

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  • flathead4
    replied
    Drag home 2 1/2 tons of iron, fix it, clean it and show it off. Why would you skimp on the most important part: the lubrication?

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  • Doozer
    replied
    Don't use 90w gear lube.
    That is totally redneck.
    Likely to cause problems with the bronzes.
    And your shop is going to smell like a rear axle
    every time you run the mill.

    -Doozer

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  • outlawspeeder
    replied
    I didn't consider it as ISO 68w oil. I've used it in my tractor for years without thinking about. It is now on the list as a consideration.

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  • thaiguzzi
    replied
    I dunno the comparison in prices. The oil i quoted is available at auto/truck/farmer-tractor parts shops and is generally very cheap.
    It may compare with your 80-90w gear oil. Prolly very similar.
    I know plenty of tractors use it not only to run the hydraulics but is also used in rear diffs and axle/gearboxes.

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  • outlawspeeder
    replied
    Hydraulic ISO 68w oil. I was thinking 80w 90 gear lube. 51 dollars for 5 gallons.

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  • The Metal Butcher
    replied
    Had to make the same choice for the sidney. Went with 30 weight non-detergent for $30 for 5 gal. But that heavy medium is the right stuff.

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  • thaiguzzi
    replied
    Hydraulic ISO 68w oil.

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  • outlawspeeder
    replied
    Stamps, No, I don't think so.

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  • Bented
    replied
    Originally posted by Doozer View Post

    Take up stamp collecting.

    -D
    Stamp collecting is far more expensive then home shop machining.

    Leave a comment:

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