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What are you using for Lathe Way Oil?

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Blue Heeler02/06/2019 10:25:48
189 forum posts

What are you using for Lathe Way Oil?



Pete Rimmer02/06/2019 10:40:16
713 forum posts
49 photos

Way oil, if I'm not using coolant oil.

It might not seem cheap but it does go a very long way. I doubt if I get through a litre a year.

Mike Crossfield02/06/2019 10:58:43
212 forum posts
19 photos

I use 68 grade Slideway Oil. As with all my lubricants, I buy it from Smith and Allan. Great service and low prices. 5 litres Slideway Oil is £11.55 plus vat and carriage. 5 litres lasts me 5 years+. I try to order a number of items (Slideway oil, cutting oil, spindle oil, paint etc) at the same time to spread carriage cost.

Thor02/06/2019 11:48:20
1229 forum posts
37 photos

I too use ISO 68 way oil since a friend gave me a 4L can, before that I used mineral based chainsaw oil mixed with a plain ISO 68 oil. The carriage seems to move slightly more smoothly using proper way oil.


Roderick Jenkins02/06/2019 11:53:05
1885 forum posts
481 photos

I use a straight 30 engine oil as recommended in my Myford handbook.


David George 102/06/2019 12:03:52
1221 forum posts
415 photos

Slideway 68 oil for me as well. Just borrow some from friend with an engineering company.


Vic02/06/2019 12:13:47
2500 forum posts
14 photos

I’m also using Slideway 68.

mechman4802/06/2019 12:16:20
2663 forum posts
410 photos

I use ISO 32 hydraulic oil; simply 'cos I have a fair bit stored away, in my lathe saddle gearbox I use 10 / 40 auto oil, both work fine for me.


Hopper02/06/2019 12:26:57
4530 forum posts
94 photos

20/50 engine oil. I have a shed full of the stuff to hand.

AdrianR02/06/2019 14:04:48
476 forum posts
23 photos

ISO 68 way oil on my larger lathe and Mill, ISO 32 hydraulic on they Myford ML2 as the oil can is never far from hand with plain bearings.

XD 35102/06/2019 14:29:00
1425 forum posts
1 photos

Chain bar oil on everything except the gearbox .

thaiguzzi02/06/2019 15:03:48
696 forum posts
131 photos

ISO 68 hydraulic oil from auto factors, designed for tractor rear axles and gearboxes.

6 quid for 5 litres.

john carruthers02/06/2019 15:30:22
604 forum posts
176 photos

iso32 'Jack Oil'

old mart02/06/2019 16:17:07
1753 forum posts
138 photos

I use 5W40 semi synthetic engine oil, any oil is better than none.

SillyOldDuffer02/06/2019 17:13:38
5767 forum posts
1230 photos
Posted by old mart on 02/06/2019 16:17:07:

I use 5W40 semi synthetic engine oil, any oil is better than none.

Absolutely, but next time you buy oil look for SAE 20 rather than 5. 5W40 is good for cold starting a car engine on frosty mornings. It works by being thin at ordinary temperatures and thickening up significantly only when the engine warms up. It lubricates best at about 100°C. SAE20 is thicker at normal temperatures and more what we want of a lubricating oil.

IP68 Hydraulic Oil, SAE 20 car oil, and SAE 75W or 80W gear oils all have about the same viscosity, and each is broadly OK for splashing on a lathe. Way oil is distinctly sticky compared with all of them.

IP68 is often recommended. I think it's because Gear oil tends to be pricey because of its high-pressure performance and engine oil might contain undesirable additives. Not that I've ever heard of a machine tool being damaged by an engine oil!


duncan webster02/06/2019 17:26:45
2588 forum posts
33 photos

Myford suggest 68 grade slideway oil for the 254S, but don't use it in gearboxes

DMB02/06/2019 18:02:20
999 forum posts

"Guy Lautards Gunk" - made up of 3 diff oils in diff proportions. Seems to work OK. One is STP or equivalent to make it stick in place another graphite, molyslip to fill any minute gaps with graphite particles and third, EP oil. It's in one of his excellent books.

(He also had another concoction to aid drilling which I have found to be very good.)

clogs02/06/2019 18:21:53
527 forum posts
12 photos

DMB what is the drill aid please........

Andrew Johnston02/06/2019 18:40:39
5499 forum posts
647 photos

An ISO68 slideway oil on the centre lathe and an ISO32 hydraulic oil on the repetition lathe. The repetition lathe is operated by levers and the slideways are sufficiently close fitting that a slideway oil adds significant drag.


Nicholas Wheeler 102/06/2019 20:01:28
314 forum posts
19 photos

Dextron 3. I've about 3l left over from topping up an auto gearbox(that I no longer have) a few years ago. It's basically light hydraulic oil with a dye, so I'm not going to buy anything else. It's one of those deals where any oil is better than nothing.

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