Mixing Fork Oil - VTXOA
 7Likes
Reply
 
LinkBack Thread Tools
post #1 of 14 (permalink) Old 02-12-2017, 09:44 AM Thread Starter
Member
 
Randman's Avatar
 
Join Date: Oct 2016
Location: ND
Posts: 77
Mixing Fork Oil

I replaced my front fork seals. When I did this I used DelRay 10 weight fork oil. I cleaned all the old fluid out and added the recommend amount. It seemed a bit thicker than the stock oil. My front suspension is now a bit stiffer than I would like it.

I was thinking of using a vacuum pump and a hose to remove some of this oil measuring the removed amount and adding the same amount of a thinner oil to soften it up a bit.

My question is: Is it ok to add thinner oil without removing all of the existing oil. Is it ok if they are mixed. Will they mix or stay separated?

Also wondering if different brands would be incompatible?
Randman is offline  
Sponsored Links
Advertisement
 
post #2 of 14 (permalink) Old 02-13-2017, 01:12 PM
Senior Member
 
Join Date: Mar 2005
Location: North Jersey
Posts: 4,777
In theory, if you mixed a 10 and a 5 50/50, you'd have a 7.5. Stick with Bel-Ray.
Randman likes this.

Jimbo. 1800c, Drag Bars, Drag Pipes, Chrome Wheels, 31T Ring Gear, BadX Extreme Seat, SOTMC Shocks, 200 Rear Tire, Elimination of all Non-essentials, Kingdom of Kicks.
Jimbo is offline  
post #3 of 14 (permalink) Old 02-13-2017, 02:04 PM
Senior Member
 
chuck_VTX F's Avatar
 
Join Date: Aug 2007
Location: Upper Right Ohio & South Texas
Posts: 5,948
Garage
do not mix brands or types... but OK to mix.

and you did use correct weight..

but time and miles you put on bike will lower the weight of oil... plus made it dirty, also lowering thickness.
,
Randman likes this.



2005 VTX1800 "F" type II, Silver Tribal, 71,000 Miles, Purchased Feb, 2005.

MTC clutch & springs.. K&N Air Filter. Garmin 2597 GPS.
chuck_VTX F is offline  
 
post #4 of 14 (permalink) Old 02-13-2017, 04:28 PM
Senior Member
 
Harkon's Avatar
 
Join Date: May 2010
Location: Calgary, Alberta, Canada
Posts: 1,275
The Hondas shipped with 5W in them, AFAIK. Larger folks, like myself preferred 10W to lighter weights. The primary thing to remember is that 10W BelRay is not the same as 10W Maxima which is not the same as Lucas (necessarily). Some manufacturers may have really close formulations, but the variance in fork and suspension fluids is astounding. Generally speaking, as mentioned, I can confirm same brand and type (series) of oils generally mix fine to make an intermediate viscosity.


'12 Road Glide Ultra, Kuryakyn Alley Cat intake, Screamin' Eagle Fatshotz slip-ons, V&H Dresser Duals, PV Tuner, NDana HID kits
Harkon is offline  
post #5 of 14 (permalink) Old 02-13-2017, 10:04 PM Thread Starter
Member
 
Randman's Avatar
 
Join Date: Oct 2016
Location: ND
Posts: 77
Quote:
Originally Posted by Harkon View Post
The Hondas shipped with 5W in them, AFAIK. Larger folks, like myself preferred 10W to lighter weights. The primary thing to remember is that 10W BelRay is not the same as 10W Maxima which is not the same as Lucas (necessarily). Some manufacturers may have really close formulations, but the variance in fork and suspension fluids is astounding. Generally speaking, as mentioned, I can confirm same brand and type (series) of oils generally mix fine to make an intermediate viscosity.
I weigh around 250 so I thought the 10W would be ok. It's just a bit too stiff. Maybe I'll take half of it out and replace it with 5W of the same brand. I did see a chart on the forum that backs up what you're saying about different brands of fork oil having a variance in viscosity ratings. I think BelRay was one of the thicker ones.

Thanks Man!
Randman is offline  
post #6 of 14 (permalink) Old 02-13-2017, 10:12 PM
Senior Member
 
Join Date: Mar 2006
Location: Everett Wa 98204
Posts: 3,080
I am old school and use ATF
115000 miles on the 1300 with just flushing every year or so and bushings & seals are factory stock.

05 1300S 6901 miles at start 114600 now
03 1800 R 64100 at start 80500 now dyno results 97.55 HP 110.22 torque
80550 E4 front
Charlie D is offline  
post #7 of 14 (permalink) Old 02-13-2017, 10:26 PM Thread Starter
Member
 
Randman's Avatar
 
Join Date: Oct 2016
Location: ND
Posts: 77
Quote:
Originally Posted by Charlie D View Post
I am old school and use ATF
115000 miles on the 1300 with just flushing every year or so and bushings & seals are factory stock.
That's a lot of miles for stock seals! Apparently the fork seals like ATF.

The seals on my bike where shot when I bought it. I never tried using ATF in forks.
Randman is offline  
post #8 of 14 (permalink) Old 02-13-2017, 11:20 PM
Senior Member
 
Harkon's Avatar
 
Join Date: May 2010
Location: Calgary, Alberta, Canada
Posts: 1,275
There's nothing wrong with ATF other than it will foam more than fork oil. That said, it's not like we ride like I ride my CRF450X. ATF does have seal softeners in it to keep seals pliable. Might be its good for fork seals. If it works, good on ya. Thanks for sharing that.
rangers4u and Randman like this.


'12 Road Glide Ultra, Kuryakyn Alley Cat intake, Screamin' Eagle Fatshotz slip-ons, V&H Dresser Duals, PV Tuner, NDana HID kits
Harkon is offline  
post #9 of 14 (permalink) Old 02-13-2017, 11:28 PM
Senior Member
 
Join Date: Mar 2006
Location: Everett Wa 98204
Posts: 3,080
Look at repair manuals from the 60s
They call for ATF and 30wt oil mix to get the action you wanted.

Fork oil is a market scheme.

ATF is anti foaming
Randman likes this.

05 1300S 6901 miles at start 114600 now
03 1800 R 64100 at start 80500 now dyno results 97.55 HP 110.22 torque
80550 E4 front
Charlie D is offline  
post #10 of 14 (permalink) Old 02-14-2017, 08:12 AM Thread Starter
Member
 
Randman's Avatar
 
Join Date: Oct 2016
Location: ND
Posts: 77
Quote:
Originally Posted by Charlie D View Post
Look at repair manuals from the 60s
They call for ATF and 30wt oil mix to get the action you wanted.

Fork oil is a market scheme.

ATF is anti foaming
The Bel-Ray fork oil was around $12.00 and I had to buy 3 bottles if I remember correctly. You can buy generic ATF for $3.50. So yeah, that is saving a bit of cash. Especially if you are flushing it regularly. Apparently it is ok to mix with oil. I may just try this myself.
Randman is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the VTXOA forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome