DOT 4 Rumors?
Thread Starter
Pro
Joined: Nov 2017
Posts: 587
Likes: 49
From: Belgium
DOT 4 Rumors?
Hi!
Just something I've read on facebook the other day, and I wanted to check with the guys on here if someone heard anything about this.
Apperantly there would be a difference in formulation between DOT3 and DOT4 fluids wich would cause our caliper seals to leak more easily.
I can't really think of anything as afaik borate esther is the component that gives dot 4 a higher boiling point.
Nevertheless, it's always good to ask on here just in case.
Cheers!
Just something I've read on facebook the other day, and I wanted to check with the guys on here if someone heard anything about this.
Apperantly there would be a difference in formulation between DOT3 and DOT4 fluids wich would cause our caliper seals to leak more easily.
I can't really think of anything as afaik borate esther is the component that gives dot 4 a higher boiling point.
Nevertheless, it's always good to ask on here just in case.
Cheers!
Melting Slicks
Joined: May 2012
Posts: 2,192
Likes: 343
From: Allenton Wisconsin
There are aluminum Wilwood D-8 calipers on the 6t8 about 9 years now and have always had Wilwood DOT 4 brake fluid in them. There are no brake fluid leaks. The brakes are always getting bleed to keep the fluid fresh. T
Le Mans Master
Joined: Apr 2011
Posts: 6,284
Likes: 1,171
From: Hermosa
I’ve always used dot 4, no leaks.
dot 3 and dot 4 even come in the same bottle in some brands.
https://shop.advanceautoparts.com/p/...E&gclsrc=aw.ds
dot 3 and dot 4 even come in the same bottle in some brands.
https://shop.advanceautoparts.com/p/...E&gclsrc=aw.ds
Is my vette stock?? HAHA
Joined: Oct 2015
Posts: 20,212
Likes: 9,350
From: Im not allowed to tell you
2020 C3 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
You just need to read the manufacturer's recommendations on the parts you buy to see which fluid will void the warranty.
Le Mans Master
Joined: May 2003
Posts: 8,877
Likes: 3,556
From: Fernandina Beach FL
2023 Restomod of the Year finalist
2020 C3 of the Year Winner - Modified
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
I would suspect that the brake bleeding process was more effective when you went back to DOT 3. If DOT 4 fluid had caused any damage to your system, changing back to DOT 3 would not have resolved it.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Team Owner
Joined: Jun 2001
Posts: 23,375
Likes: 1,067
From: Virginia USA
I use DOT 5. Never had a problem with it and it's been on DOT 5 since I bought my car. Strong pedal (non-power) and I don't have to worry about my fluid attracting water since DOT 5 is hydrophobic. This will help if you store your car for any long period of time.
Good info:
Brake Fluid Explained
Good info:
Brake Fluid Explained
Last edited by theandies; Mar 23, 2019 at 03:11 PM.
