DOT3 vs DOT4 brake fluid? - Ducati.ms - The Ultimate Ducati Forum
http://www.ducati.ms/forums
» Sponsors
» Insurance
Go Back   Ducati.ms - The Ultimate Ducati Forum > Mechanical Tech Discussion > Oil and Lubrication

Reply
 
LinkBack Thread Tools Display Modes
Old Jul 11th, 2008, 10:02 pm   #1 (permalink)
Member
 
Join Date: Apr 2007
Location: Melbourne, Victoria, Australia
Posts: 50
DOT3 vs DOT4 brake fluid?

Hey,
My bike mentions to use DOT4 brake fluid for the clutch and brakes etc...

At home however, we just have Castrol DOT3 brake fluid.
Is it ok to use that?

Bike is a 2000 748
dims is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old Mar 4th, 2009, 2:41 am   #2 (permalink)
Senior Member
 
ornas's Avatar
 
Join Date: Jul 2008
Location: Vilnius, , Lithuania
Posts: 133
DOT inticates fluids boiling temperature. The higher DOT is the higher is boiling pemperature. If you are not racing with your bike dot 3 should be enough.
__________________
2002 748Senna
2002 998 (sold)
2003 999s (sold)
2004 998s f.e. (sold)
2005 749s (sold)
2002 998r
ornas is offline   Reply With Quote
Old Mar 26th, 2009, 10:57 pm   #3 (permalink)
Senior Member
 
Join Date: May 2008
Location: vancouver, b.c., canada
Posts: 131
Images: 10
just came across this.

there is more to the dot rating than boiling point.

do not use dot 5!!! dot 5 is silicone based and is not compatable. dot 3 and 4 are compatable.
avocet is offline   Reply With Quote
Old May 1st, 2009, 5:04 am   #4 (permalink)
Senior Member
 
Join Date: Mar 2005
Location: Bangor, Pa,
Posts: 228
I think there is a viscosity difference in the Dot 3-4 also.
__________________
Fast Bikes and Small Women
lubricity is offline   Reply With Quote
Old May 26th, 2009, 5:29 pm   #5 (permalink)
Senior Member
 
spyvito's Avatar
 
Join Date: Mar 2007
Location: Banjo Country, Georgia, USA
Posts: 1,581
Suuuper Blue

I am using ATE Blue Racing Fluid, DOT4. I like it because it is blue.
spyvito is offline   Reply With Quote
Old May 27th, 2009, 1:42 pm   #6 (permalink)
Member
 
slhaggard's Avatar
 
Join Date: Mar 2009
Location: Maryland, , USA
Posts: 70
You can also use DOT 5.1. Same as 3 or 4, but with higher boiling point, and better moisture protection. I got mine at Desmotimes.
__________________
Stephen
Previous 2003 Monster 620 owner. Proud owner of a 2003 ST4s ABS.
  • Ducati Comfort Fairing
  • Sargent Seat
  • 1/2" Bar Risers
  • Penske Rear Shock
  • 15/42T Sprockets
  • Vented Counter-shaft Sprocket Cover from DT
  • DT Case Saver Insert
  • Evo Clutch Slave
  • Billet Reservoir Covers from DT
  • Throttlemeister
  • BMC Air Filter
  • "Full Monty" Barnet Clutch, Hard Ano Basket, Vee-Two Hub from DT
  • Carbon Fiber Sil Motor Exhaust
  • Power Commander III USB (Need some dyno time)

slhaggard is offline   Reply With Quote
Old May 28th, 2009, 3:50 pm   #7 (permalink)
Senior Member
 
sebastian750's Avatar
 
Join Date: Aug 2007
Location: Traverse City, MI, USA
Posts: 539
i thought mine said use either 3 or 5 fluid. i always put in 3! looking online it does say 5 is silicone based and does not mix. so if this is correct and my bike does say that then you would have to completely drain the 3 and use 5. bike is away at my pops awaiting my stator rebuild or i would go check for sure
sebastian750 is offline   Reply With Quote
Old May 28th, 2009, 6:19 pm   #8 (permalink)
Senior Member
 
Shazaam's Avatar
 
Join Date: Feb 2007
Location: San Diego, CA, USA
Posts: 2,535
"DOT 3-5 Fluids"

You're right sebastian. Here's how Brembo explains the MC reservoir marking in their Technical Notes:

Yes, we know the cap on the rectangular master cylinders says “DOT 3—5 Fluids”-BUT PLEASE NOTE: Silicone DOT 5 fluids are NOT generally in use in Europe, but Glycol-based “DOT 5.1” fluids ARE. Hence, the “DOT 5” cap designation.
__________________
Shazaam is offline   Reply With Quote
Old Jun 20th, 2009, 10:34 am   #9 (permalink)
Member
 
Join Date: May 2009
Location: louisa, ole virginnY, usa
Posts: 40
Allow me to chime in on this. We have had this debatew going on in the antique and collector car world for some time.

I would recommend DOT 5 silicone only on vehicles that spend "most" of their life in static display. Its resistance to moisture wicking is almost nil. Even then i would only use it after a thorough flushing 3-4 run complete system bleedings. Personally if cost permits i replace all the components of the system.

Ive used DOT 5 silicone for years on opne of my cars that sits for most of its life and hits the race track 3-4 times a year with no events.
Monty96CR is offline   Reply With Quote
Old Oct 1st, 2009, 1:41 pm   #10 (permalink)
Member
 
Join Date: Feb 2009
Location: South Bend, IN, USA
Posts: 78
my ducati dealer told me only dot 4 for my 999
tlrider187 is offline   Reply With Quote
Sponsored Links
Advertisement
 
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 On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Clutch fluid DJMPowersports Superbikes 12 Oct 16th, 2007 2:17 pm
Oops - Brake Fluid on the Brake Pads Kernel_Panic Sport Touring 3 Oct 13th, 2007 12:56 pm
Paint that resists brake fluid? TrojanHorse Ducati Motorcycle Chat 6 May 4th, 2007 8:13 am
front brake leaking brake fluid? kurtfriedrich Superbikes 2 Mar 19th, 2007 1:19 am
Lock-up in the front!!!! StavesacredarK Superbikes 2 Apr 5th, 2006 11:10 am

Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 5:42 am.



Ducati.ms Web Community is powered by: vBulletin
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
Motorcycle News, Videos and Reviews
Honda Grom Forum Harley Davidson Forum Honda 600RR Kawasaki Forum Yamaha R6 Forum Yamaha FZ-09 Forum
1199 Panigale Forum Roadglide Forum Honda CBR1000 Forum Vulcan Forum Yamaha R1 Forum Yamaha R3 Forum
Ducati Monster Forum Harley Forums Honda CBR250R Forum ZX10R Forum Star Raider Forum Yamaha Viking Forum
Suzuki GSXR Forum V-Rod Forums Honda Shadow Forum Kawasaki Motorcycle Forum Star Warrior Forum KTM Duke 390 Forum
SV650 Forum BMW S1000RR Forum Honda Fury Forum Kawasaki Versys Forum Drag Racing Forum Ducati 899 Panigale Forum
Suzuki V-Strom BMW K1600 Triumph Forum Victory Forums Sportbikes BMW NineT Forum
Volusia Forum BMW F800 Forum Triumph 675 Forum MV Agusta Forum HD Street Forum Suzuki GW250 Forum
Yamaha Motorcycles Victory Gunner Forum Honda Vultus Forum HD LiveWire Forum