Power Wagon Advertiser Forums Midwest Military Dodge Power Wagon Gear Vintage Powerwagons

Go Back   Power Wagon Advertiser Forums > MILITARY & CIVILIAN DODGE TRUCK RELATED FORUMS > Service & Repair Procedures includes body/frame repair & painting

Notices

Service & Repair Procedures includes body/frame repair & painting Useful technical content, information or questions applicable to many or all of our truck models; mechanical, electrical, body & paint, tire, restoration, whatever...

Reply
 
Thread Tools Display Modes
Old 10-04-2016, 08:26 PM   #1
Jason Mills
Registered
 
Join Date: Aug 2003
Location: Morrisville VT
Posts: 289
Dot 5 brake fluid?

Has anyone used it successfully in their truck?

I tried using it 20 years ago and never got a brake peddle that was satisfactory. I have heard that the military uses it or has used it in the past. Is this true?

Thanks,
Jason
Jason Mills is offline   Reply With Quote
Old 10-05-2016, 01:36 PM   #2
Kevin in Ohio
Tips and Tricks by Kevin
 
Kevin in Ohio's Avatar
 
Join Date: May 2003
Location: Ohio
Posts: 404
I'm using it in my modified but it has Hydroboost and 4 wheel discs on it. It'll put you through the windshield. The only thing I noticed was the fittings have to be tighter than normal to prevent any leaks. Other than that, no difference so far other than no paint damage. ;)

Kevin in Ohio is offline   Reply With Quote
Old 10-05-2016, 10:46 PM   #3
Jason Mills
Registered
 
Join Date: Aug 2003
Location: Morrisville VT
Posts: 289
Thanks Kevin for sharing your experience.

Wow! "Craftsmanship" does not describe the artistry involved in that picture.

The fact that it needs a tighter connection on the brake lines makes me wonder if I would have trouble with the wheel cylinders leaking..
Jason Mills is offline   Reply With Quote
Old 10-05-2016, 11:42 PM   #4
Kevin in Ohio
Tips and Tricks by Kevin
 
Kevin in Ohio's Avatar
 
Join Date: May 2003
Location: Ohio
Posts: 404
Quote:
Originally Posted by Jason Mills View Post
Thanks Kevin for sharing your experience.

Wow! "Craftsmanship" does not describe the artistry involved in that picture.

The fact that it needs a tighter connection on the brake lines makes me wonder if I would have trouble with the wheel cylinders leaking..
I used all over the counter rebuilt calipers and have had no leaks in 4 years. No leaks or retighten on any of the lines either. I used all stainless lines and fittings too.

Kevin in Ohio is offline   Reply With Quote
Old 02-04-2017, 09:42 PM   #5
Matthew Ziegler
Registered
 
Join Date: Feb 2011
Posts: 246
dot 5

I used the purple military surplus dot 5 in my m37 for a few years, had to bleed the brakes at least 4 times to get all the air out. When I switched over to a Chevy master cylinder and disc brakes the lid on the mc. said use only dot 3,so I flushed the lines and switched to 3. Motorcycle mechanic friend of mine says Harleys use dot 5, he claims it has a much higher boiling point.
Matthew Ziegler is offline   Reply With Quote
Old 02-17-2017, 03:47 PM   #6
bmhenry
Registered
 
Join Date: Jun 2012
Location: Wright City, MO
Posts: 24
DOT 3&4 can be "mixed" without issue. However DOT 5 cannot be mixed and needs to be stand alone. It does indeed have a higher boiling point and is what my Harley requires as well.
bmhenry is offline   Reply With Quote
Old 07-12-2017, 05:39 AM   #7
wecluis
Registered
 
Join Date: Jun 2017
Posts: 10
I also use DOT 5 also, and no problems/leaks whatsoever.
wecluis is offline   Reply With Quote
Old 02-09-2018, 03:39 AM   #8
El Muerto
Premium Forum User
 
El Muerto's Avatar
 
Join Date: Jan 2018
Location: Qualicum, BC
Posts: 35
I use dot5 all the way around. I will never put dot 3 back in anything its wasted more shop time, money and parts than almost anything..except 10 year old gasoline.
Things to be aware of are;
It will evaporated slowly over time so check your levels regularly.
It doesnt absorb water so any condensation that enters the system will pool at the lowest point. Always bleed a bit out before the first freezing temperatures to be safe..i guess there is the potential for that water to boil in the wheel cylinder which may account for reports of dot5 becoming compressable and creating fade under extreme braking. I have never experienced a soft pedal as i would expect from this condition , but stock M37 brakes do fade and i have experienced that.
All of my trucks either already have dot5 or are waiting to be converted.
My ct800's have it in the hydraulic clutch.
An excellent tip is to use a little dot5 on the die, prepped line and on the tool for the second operation when making a double flare. You will be happy with the results.
Syl-glide rubber grease on all your rubber parts
__________________
Corey Myronuk

1953 M43
1955 M37
1944 WC62
1943 WC53
1942 CMPF60S
1957 D300 street rod
1941 Plymouth special deluxe businessmans coupe
1949 federal CF-55-AF
1957 Chevrolet 1600 5ton Napco clone (ask me)
1967 Dodge CT800
1974 Dodge CT800
60's Euclid R13 custom 4x4
El Muerto is offline   Reply With Quote
Reply

Thread Tools
Display Modes

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

BB code is On
Smilies are Off
[IMG] code is On
HTML code is Off

Power Wagon Advertiser Forums

Forum Jump



All times are GMT -5. The time now is 12:46 AM.


Powered by vBulletin®
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Copyright ©2002 - 2018, Power Wagon Advertiser. All rights reserved.