Author Topic: What do you use for fork oil?  (Read 22252 times)

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Offline Dunstall_74

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What do you use for fork oil?
« on: August 25, 2010, 07:09:06 pm »
Been reading through some fork oil threads, and noticed guys are using 1 of three items.  I've heard branded motorcycle fork oil, motor oil, and ATF.  I've been thinking about giving the motor oil a try, but wanted to see what the collective knowledge on the forum had to say about it..........

What do you use, and what would you say are the benefits?
''It is clear our nation is reliant upon big foreign oil. More and more of our imports come from overseas.''
—President George W. Bush, Beaverton, Ore., Sep. 25, 2000

Offline BobbyR

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Re: What do you use for fork oil?
« Reply #1 on: August 25, 2010, 07:11:40 pm »
If you read the threads you will already know the collective wisdom. There is none. It is a matter of personal choice.
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Offline Alan F.

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Re: What do you use for fork oil?
« Reply #2 on: August 25, 2010, 07:14:06 pm »
+1
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Offline Dunstall_74

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Re: What do you use for fork oil?
« Reply #3 on: August 25, 2010, 07:22:15 pm »
Point taken.  Think I'll go with 10w30 motor oil.  Personal choice. ;D
''It is clear our nation is reliant upon big foreign oil. More and more of our imports come from overseas.''
—President George W. Bush, Beaverton, Ore., Sep. 25, 2000

Offline Alan F.

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Re: What do you use for fork oil?
« Reply #4 on: August 25, 2010, 07:25:30 pm »
here's to ya man!
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Offline BobbyR

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Re: What do you use for fork oil?
« Reply #5 on: August 26, 2010, 05:58:05 am »
I personally went from ATF to 10-30 and it seems to be working out for me.
Dedicated to Sgt. Howard Bruckner 1950 - 1969. KIA LONG KHANH.

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Offline axe

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Re: What do you use for fork oil?
« Reply #6 on: August 26, 2010, 05:59:40 am »
FWIW, both the owner's and shop manuals recommend 10W30 motor oil.

Offline KRONUS0100

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Re: What do you use for fork oil?
« Reply #7 on: August 26, 2010, 06:09:34 am »
10w-30 valvolene oil
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Offline 78CB750CAFE

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Re: What do you use for fork oil?
« Reply #8 on: August 26, 2010, 10:01:53 am »
I use a 50/50 mix of Belray 10w and 15w fork oil
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Re: What do you use for fork oil?
« Reply #9 on: August 26, 2010, 10:18:43 am »
bar's leak hydraulic jack oil and 10w30 50/50 works well on small leaks

Offline L.A. Nomad........

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Re: What do you use for fork oil?
« Reply #10 on: August 26, 2010, 10:20:14 am »
Fork oil is expensive!

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Offline Deltarider

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Re: What do you use for fork oil?
« Reply #11 on: August 26, 2010, 10:30:11 am »
Quote
FWIW, both the owner's and shop manuals recommend 10W30 motor oil.
Where does it say motor oil?
I have always learned it should be ATF or Fork Oil.
BTW, haven't changed mine in decades.
« Last Edit: August 26, 2010, 10:31:46 am by Deltarider »
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Offline axe

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Re: What do you use for fork oil?
« Reply #12 on: August 26, 2010, 11:30:20 am »
Quote
FWIW, both the owner's and shop manuals recommend 10W30 motor oil.
Where does it say motor oil?
I have always learned it should be ATF or Fork Oil.
BTW, haven't changed mine in decades.
I suppose it isn't explicitly referred to as "motor oil", but I don't know of any other oil with 10W30 viscosity.

Edit: I thought motor and fork oil were essentially the same, but after some googling it seems they aren't. Best stick to real fork oil.
« Last Edit: August 26, 2010, 12:08:19 pm by axe »

Offline bruisedlee

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Re: What do you use for fork oil?
« Reply #13 on: August 26, 2010, 11:53:32 am »
i went from half emptl reeeeeaaaalllllllllyyy old watery mystery stink oil to 15w fork oil.  pretty damn stiff!


Offline egar

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Re: What do you use for fork oil?
« Reply #14 on: August 26, 2010, 02:43:53 pm »
I use 50 percent pure virgin olive oil and 50 percent coconut oil.  :D
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Offline underachiever

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Re: What do you use for fork oil?
« Reply #15 on: August 26, 2010, 04:49:41 pm »
I switched from cheap 10w30 that I put in last year when I rebuilt the fork to some very high quality synthetic ATF I had laying around that I was never otherwise going to use. Fluid level is a bit high so not quite getting full travel on the front end but can you say smoooooooooth. ;D

Offline BobbyR

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Re: What do you use for fork oil?
« Reply #16 on: August 26, 2010, 05:19:21 pm »
There will never be a universal answer to this question. We all have different riding styles, road surfaces, and different amount of wear and tear on the fork innards. You find what works best for you and THAT is the perfect fork oil.
Dedicated to Sgt. Howard Bruckner 1950 - 1969. KIA LONG KHANH.

But we were boys, and boys will be boys, and so they will. To us, everything was dangerous, but what of that? Had we not been made to live forever?

Offline cb650PK

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Re: What do you use for fork oil?
« Reply #17 on: August 26, 2010, 05:31:02 pm »
Oil from baby seals is said to be the best, in its absence whale oil or oil from dolphins can be used as substitute. They are Japanese bikes after all.
S CB750 na vecne casy a nikdy jinak.

Offline seaweb11

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Re: What do you use for fork oil?
« Reply #18 on: August 26, 2010, 11:28:19 pm »
Oil from baby seals is said to be the best, in its absence whale oil or oil from dolphins can be used as substitute. They are Japanese bikes after all.

You missed baby oil ;)

Offline dave500

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Re: What do you use for fork oil?
« Reply #19 on: August 27, 2010, 01:40:21 am »
im using 20/60 motor oil,i tried atf and it was too soft,its a choice and riding style thing,mines firm.why not start with atf,and try going up grade by grade.itll take a day or two to get the feel you like.the forks will be nice and flushed by then aswell.

Offline cookindaddy

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Re: What do you use for fork oil?
« Reply #20 on: August 27, 2010, 03:56:59 am »
The Honda service manual says ATF. I am sure any good hydraulic oil would do. Probably they don't want the additive chemicals in regular engine oil in the forks? I used Honda brand ATF and that was pretty expensive $8/liter and I only used about 1/4 of it.
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Offline Doctor_D

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Re: What do you use for fork oil?
« Reply #21 on: August 27, 2010, 08:10:00 am »
There is no viscosity standard for fork oils, so I tend to avoid them.  Motor oil has other additives that are unnecessary in suspension parts and the viscosity rating of motor oils isn't equal to the same rating for fork oils. http://www.peterverdonedesigns.com/lowspeed.htm

The good news is that suspension fluid, unlike fork oil, does have a viscosity standard and was designed for this type of application. I've used Redline Medium 10wt with success, and currently have Bel Ray HVI 15wt shock fluid in my Norton and CB750.

As for price, if $10-$20 every 3-4 years is a problem - one might have other things to worry about besides fork oil.  ;)
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Offline CycleRanger

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Re: What do you use for fork oil?
« Reply #22 on: August 27, 2010, 08:33:02 am »
I used the oil from 92 tins of Anchovies.  I find it superior to even baby seal oil.
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Offline cb550fcafe

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Re: What do you use for fork oil?
« Reply #23 on: August 27, 2010, 09:24:38 am »
I used the oil from 92 tins of Anchovies. 

So you're the guy who filled my forks last time.  ;D It smelled like an Anchovie's butt. Seriously the original oil smelled like dead fish. I use fork oil from the Honda parts shelf, can't remember the name but its 10wt.

Offline seaweb11

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Re: What do you use for fork oil?
« Reply #24 on: August 27, 2010, 09:35:35 am »
I used the oil from 92 tins of Anchovies. 

So you're the guy who filled my forks last time.  ;D It smelled like an Anchovie's butt. Seriously the original oil smelled like dead fish. I use fork oil from the Honda parts shelf, can't remember the name but its 10wt.

I think I read some where that originally they did use a fish oil at the factory for the forks.

 

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