I'm about to do pads/rotors on my '14 EB and I'm going to flush the fluid and switch to DOT4. Easy enough, I'm just wondering how much fluid it'll take. The couple of places I've found that mentioned the qty said 5 qts. That sound like an awful lot to me. It's been a while, but I my memory I've usually used a qt, maybe 2 tops on other vehicles.

 

You should stay have dot 4 LV in your 14. I have a 14 EB and I'm 99% positive that it's spec outs dot4LV.

 

You're right, I just ck'd. In "capacities & specs" the owners manual doesn't specify qty. It just states "between min and max marks".

 

Below is a copy of a past post of mine regarding brake fluid flushing, although I have a 2011 I don't believe that capacity should be much different. Only real difference is the change to DOT4 fluid. Let me know if you have any other questions and I will try to assist. Good luck.



"2011-2013 model years use DOT 3 brake fluid according to the owners manual's, 2014 model year use's DOT 4 brake fluid.

Recently I needed to do my brakes and I went with Bosch QuietCast brake rotors on the front (due to time constraints and condition - excellent - of the rear rotor/drum I didn't change them). I went with Wagner OEX brake pads all around. Also changed the brake fluid at the same time (brake fluid didn't look bad at first until I looked closer), for anyone wanting to perform this I would highly recommend the following to ensure the most effective flushing you will need two quarts.
1) First using a brake bleeding vacuum pump, or a turkey baster - suck/vacuum out
all of the fluid out of the reservoir.
2) Starting at the rear passenger side wheel, begin bleeding the brakes - two
people minimum needed for this part (for those who have never done this - one
person in the driver seat pumping, pushing and holding the brake pedal while the
other opens and closes the bleeder valve('s) - YOUTUBE has MANY videos on this
process). You will get ALOT of fluid out of this side until clear fluid emerges.
**DON'T FORGET TO KEEP THE RESERVOIR FILLED WHILE BLEEDING BRAKES**
3) Continue with the driver side rear wheel, then move to the two front wheels."

 

That's exactly what I was looking for, thanks. 2 qts sounds a lot more reasonable.

 

Great info, Merlyn...about to do the same on my 2011 F150, but the manual only says min/max and most posts don't give the number of quarts needed...was going with four, but will split the difference and come home with 3 and liberally bleed/flush them.

You didn't swap Dot4 for the Dot3? I didn't geek out on the improvements (or price differential), but I could be talked into it if vastly superior. I figure dot3 has served us well for 4 decades, so was going with what I know.

 

There is only a minor difference between DOT3 and DOT4. The latter has a slightly higher "fresh" BP (boiling point) so more resistant to vaporizing under high heat from severe braking. However, the downside is that the BP of DOT4 degrades more quickly as the fluid picks up moisture, eventually dropping below the DOT3 BP. Not an expert, but I believe this is the reason the many passenger vehicles are sent out the factory door with DOT3, as it is more resistant to aging which is the biggest concern in a daily use vehicle that may not get the recommended change of brake fluid at the specified interval. Obviously, the higher BP of DOT4 is more critical in a highly stressed vehicle like a race car where max braking loads create huge amounts of heat. I purchased a new 2013 Corvette Grand Sport--believe it or not, it was built with DOT3 spec'd for the brake system.