Warco Super Major Milling Machine – Gearbox Oil

[Lee Jones 6Participant @leejones6]

Just putting my Warco Super Major Milling Machine gearbox back together.

The operating instructions say to use a non-detergent SAE 30 oil.

I don't have SAE 30, but I do have ISO 68 (which Harrison recommends).

According to the conversion chart below, they are very similar.

My question is, would it be suitable to use ISO 68 instead?

[Lee Jones 6Participant @leejones6]

[thaiguzziParticipant @thaiguzzi]

Yes, no probs, or use 80/90w gearbox oil, whichever is easier to hand.

[Dave HalfordParticipant @davehalford22513]

SAE 30 is VW Beetle aircooled engine oil, diff oil is OK if there's no bronze in the box

Edited By Dave Halford on 25/05/2020 11:10:37

[SillyOldDufferModerator @sillyoldduffer]

Posted by Dave Halford on 25/05/2020 11:10:07:

… diff oil is OK if there's no bronze in the box

+1

Lathes and mills aren't fussy about oil, but watch out for performance oils. High pressure oils often contains additives that attack Copper, and Copper is used in some bearings and gears. Check the Oil's label for any mention of incompatibilities. Plain oils are fine.

Dave

[Lee Jones 6Participant @leejones6]

This is what I have:

[AdrianRParticipant @adrianr18614]

I went through the what oil to use a while back. The advise I got here is ISO VG 68/ SAE 30 Hydraulic oil is fine. Also a lot cheaper than the little bottles of 'special' lathe/mill oil some companies sell.

Adrian

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