So I figured it is time to replace all my brake fluid in my fleet.
The Cap on the Master Cyl on my 1999 ML320 reads Dot 4+

At Auto Zone the counter guy said Dot 4+ means DOT 4 synthetic.
He sold me Valvoline Synpower DOT 3-4.

I guess Valvoline has a formula that can be mixed with 3 or 4 .

Anyone use this with success ?

__________________
Steve Danville
what i did myself.
CPS
rear shocks
MAS x 3.
SparkPlugs (twice)
Fuel pump & Filter
Window switch
replaced both failed horns with Honda horns.
Cleaned ERG Tube
Oil changes
Oil consumption Fix
Brake Pads
A/C Recharge
Anti-Freeze change X 2.
Front Shocks. Monroe. $90
Mercedes Warrenty Work:
Harmonic balancer,power steering clamp. Cat converters.Drive Shaft Bearing.s
Replaced Outer Lower Tie Rods and front lower ball joints at 156,000 miles