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Old 07-01-2020, 07:06 PM   #1
stewgee
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Cool 600w oil

I stopped by O'Reilly the other day and asked the guys if they had any 600 weight oil. They asked me what I had been smoking. Crazy huh?
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Old 07-01-2020, 07:27 PM   #2
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Default Re: 600w oil

Well ya see, 600w oil isn't 600 weight. Some use SAE 140. I use SAE 250 as I believe it is closer to 600W.

You been smokin' fan belts again?
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Old 07-01-2020, 09:21 PM   #3
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Default Re: 600w oil

Yeah Ruth being a newbie to the Mod A world I just never crossed this. Always worked with the 10w`s and so forth. Thanks for the lesson.
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Old 07-01-2020, 09:32 PM   #4
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Default Re: 600w oil

If you really want to mess with them ask for steam cylinder oil! LOL
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Old 07-01-2020, 09:37 PM   #5
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Default Re: 600w oil

😁🤣🤣
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Old 07-01-2020, 09:51 PM   #6
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Default Re: 600w oil

Don't ignore homegrown variations of STP. I won't use it straight, but as a concoction with other thick gear oils. The rear end does not need 600. The transmission does! Why? you ask.
To slow the gears down quickly when shifting and to prevent leaking. The rear doest need to slow down because there is constant mesh. On your steering box, you'll note two bolts, one is a pipe threaded filler plug. The other is an adjustment for the bearings in your steering box. Do n't tighten this one too much, just snug it. No tightening it! It snugs a race up against a bearing and too tight cracks it and you'll have a click in your steering wheel as you turn it. Remove the drain plug and check the fluid. Normally, this also takes 600. However some of us have found that John Deere , Cornhead Grease works very well. It's cheap ($3-4 a tube) and it's pretty available and it doesn't leak out. So there, you have plenty to work with. Good Luck!
Terry
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Old 07-01-2020, 10:49 PM   #7
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Default Re: 600w oil

Quote:
Originally Posted by Terry, NJ View Post
On your steering box, you'll note two bolts, one is a pipe threaded filler plug. The other is an adjustment for the bearings in your steering box. Do n't tighten this one too much, just snug it. No tightening it! It snugs a race up against a bearing and too tight cracks it and you'll have a click in your steering wheel as you turn it. Remove the drain plug and check the fluid. Normally, this also takes 600.
Terry
Drain Plug? On the steering box? I wasn't aware it had one.
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Old 07-01-2020, 10:58 PM   #8
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Default Re: 600w oil

https://www.kellerheartt.com/product...19399813070959
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Old 07-01-2020, 11:07 PM   #9
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Default Re: 600w oil

http://penriteoil.com.au/

Very good steering gearbox oil/grease
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Old 07-01-2020, 11:57 PM   #10
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Default Re: 600w oil

600W is steam cylinder oil,for steam engine use, also listed for use in worm drive gearboxes
Then there is the 600 series of gear oils, listed for use with spur gears, and bevel gears.
I got a pail of Shell omala 680 for my car
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Old 07-02-2020, 05:46 AM   #11
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Default Re: 600w oil

Just yesterday I got a gallon of MOBIL 600 W. From a guy here in Maine. He bought a 5 gallon pail from the distributor for $135. $6.75/qt, pretty nice.
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Old 07-02-2020, 06:04 AM   #12
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Default Re: 600w oil

600W is in the 180-240 weight range. Either 140 or 250 work just fine.

STP is not a lubricant, many use it though.

The transmission oil is also used in the rear end and steering box.
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Old 07-02-2020, 07:17 AM   #13
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Default Re: 600w oil

I also think it's important for the transmission oil to be tacky and cling to the gears. I've got an old bottle of 600W from the company that eventually became Macs (Specialty Auto Products I think). Anyway, it is very dark, very thick and it STICKS to everything.



The last 600W I got from Macs a few years ago had the same label explaining what 600W was on the bottle but this stuff is just SAE140 gear oil, thick and slick but no cling whatsoever. I use it in the rear end, works well there.



I like the 600W from Brattons, it is also dark, not as tacky as the old stuff but not bad.
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Old 07-02-2020, 07:19 AM   #14
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Default Re: 600w oil

Quote:
Originally Posted by Terry, NJ View Post
Don't ignore homegrown variations of STP. I won't use it straight, but as a concoction with other thick gear oils. The rear end does not need 600. The transmission does! Why? you ask.
To slow the gears down quickly when shifting and to prevent leaking. The rear doest need to slow down because there is constant mesh. On your steering box, you'll note two bolts, one is a pipe threaded filler plug. The other is an adjustment for the bearings in your steering box. Do n't tighten this one too much, just snug it. No tightening it! It snugs a race up against a bearing and too tight cracks it and you'll have a click in your steering wheel as you turn it. Remove the drain plug and check the fluid. Normally, this also takes 600. However some of us have found that John Deere , Cornhead Grease works very well. It's cheap ($3-4 a tube) and it's pretty available and it doesn't leak out. So there, you have plenty to work with. Good Luck!
Terry
I could have written the above. We use 50/50 mix STP and 600w oil from MACíS in transmission and rear end. Cornhead grease In steering box and u-joint.

Enjoy.
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Old 07-02-2020, 10:10 AM   #15
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Default Re: 600w oil

The "W" in oil designations is for "winter" not "Weight". I use Chevron Maropa 680 in my gear boxes, corn head grease in steering boxes.
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Old 07-02-2020, 11:38 AM   #16
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Default Re: 600w oil

Quote:
Originally Posted by Licensed to kill View Post
The "W" in oil designations is for "winter" not "Weight". I use Chevron Maropa 680 in my gear boxes, corn head grease in steering boxes.


Thats kinda misleading. W stands for weight, but, the W meaning winter means that the number before the W such as a 10 means the oil flows like a 10 weight oil when cold. The number after the W such as 30 means the oil has the film strength of a 30 weight.
Its the same oil viscosity.
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Old 07-02-2020, 11:42 AM   #17
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Default Re: 600w oil

Its been mentioned several times here that the 600W from some of the vendors is 140 or 250 with STP added. I don't know if its true or not.

There are other oil suppliers that sell 140 and 250. Either will work fine. I see little difference between them.
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Old 07-02-2020, 04:21 PM   #18
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Default Re: 600w oil

I have been using a 680 oil (CHEVRON OR MOBIL) in my steering box, transmission, and differential for many years. I find it to be outstanding........
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Old 07-02-2020, 07:46 PM   #19
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Default Re: 600w oil

If I remember correctly Mobil/Chevron 680 is an SAE 140 viscosity oil.
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Old 07-02-2020, 08:16 PM   #20
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Default Re: 600w oil

Best to buy the correct product from the Model A suppliers. Mine came from Berts.

I would not want to mix up something and hope that its correct when the suppliers have the correct stuff.

Marc
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