- Joined
- Aug 9, 2022
- Messages
- 155
What are the formulation and performance differences between the Valvoline DOT 3&4 brake fluid and standard DOT 3 or DOT 4 brake fluid?
Last edited:
There is a low viscosity DOT 4 brake fluid marked as DOT 4 LV. Ford has specified DOT 4 LV brake fluid in the F150 and other Ford and Lincoln vehicles for years now along with other auto makers. I think Mercedes calls DOT 4 LV brake fluid DOT 4 Plus.
There's also dot5.
I have used it, but I doubt anyone has sent a sample of the fluid for analysis, so no one knows the answer.Has anyone used the Valvoline Dot 3/4 specifically? Wondering if it will absorb moisture like a DOT 3 rather than a DOT 4.
I have used it, but I doubt anyone has sent a sample of the fluid for analysis, so no one knows the answer.
Chasing boiling points is generally a pointless exercise for daily drivers, just stick with the recommended fluid if it is DOT3.
No, I would use a DOT3 fluid, preferably a DOT3 fluid from an OEM. Take a look at this thread:Would you recommend the Valvoline DOT 3/4 fluid as a no compromise performer for replacing Mopar DOT 3? I suspect it is not the same formulation as standard DOT 4 because it doesn't make any sense for Valvoline to sell DOT 4 fluid in a bottle marked DOT 3/4 when they also sell DOT 4 fluid.
No, I would use a DOT3 fluid, preferably a DOT3 fluid from an OEM. Take a look at this thread:
Brake Fluid Military Testing - DOT 3 v DOT 4 vs DOT 5.1
I have been researching brake fluid for a bit now to determine if a switch from DOT 3 to DOT 5.1 makes any sense for our vehicles. The one I'm most concerned about is our 2018 LEAF EV which calls for yearly fluid flushes, and has a very expensive integrated electronic braking system. We also see...bobistheoilguy.com
Even with DOT3 fluids, some have significantly better low temp performance and lubricity than others. Not all DOT3 fluids are the same.
I used to use the valvoline dot 3/4 but looks like they actually have separate products now. Will be using their DOT 3 on my next job.
Can you send me a link where to buy the Valvoline DOT 3 product? I could only find the DOT 3&4 or the DOT4.
Well like I said I’ve been using the dot 3&4 for many years now in my dot 3 applications and it holds up great. Anecdotally- never did spend the money on a fluid analysis but during bleeds it always comes out okishWow that looks to be the only place that carries Valvoline DOT 3, but unfortunately there isn't a Menards in the state I live in nor do they give a shipping option for that item.
5.1There's also dot5.