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BG Products, Inc.

BG DOT 4 Brake Fluid

BG DOT 4 Brake Fluid
PN 840

PN 84032
32 fl. oz. (946 mL) bottle

PN 84048
48 fl. oz. (1.4 L) bottle

PN 84064
64 fl. oz. (1.8 L) bottle

BG DOT 4 Brake Fluid

Provides the ultimate high temperature protection and moisture resistance for all DOT 4 brake systems.

PN 840

PN 84032
32 fl. oz. (946 mL) bottle

PN 84048
48 fl. oz. (1.4 L) bottle

PN 84064
64 fl. oz. (1.8 L) bottle

SKU: 840 Category:

BG DOT 4 Brake Fluid provides the ultimate high temperature protection, moisture resistance, and lubricity for all disc and drum brake systems in which DOT 4 fluid is recommended. 

Suitable for use in conventional and anti-lock (ABS) brake systems that require DOT 4 brake fluid. 

SPECIFICATIONS
Test Typical Test Results
FMVSS* No. 116 Specifications SAE** J1704 Specifications BG DOT 4 Brake Fluid
Equilibrium Reflux Boiling Point, min 230°C (446°F) 230°C (446°F) 260°C (500°F)
Wet Equilibrium Reflux Boiling Point, min 155°C (311°F) 155°C (311°F) 166°C (330°F)
Kinematic Viscosity,
at –40°C (–40°F), cSt max.
1800 1800 1014
Kinematic Viscosity,
at 100°C (212°F), cSt
>1.5 >1.5 2.0
pH 7–11.5 7–11.5 8.0
Fluid Stability
  High Temperature Stability, change, max
  Chemical Stability change, max
3°C (5.4°F)3°C (5.4°F) 5°C (9°F)5°C (9°F) –1°C (–2°F)–1°C (–2°F)
Corrosion weight change, mg/cm2, max

   Tinned iron

   Steel

   Aluminum

   Cast iron

   Brass

   Copper

0.20.2

0.1

0.2

0.4

0.4

0.20.2

0.1

0.2

0.4

0.4

0.000.00

0.00

0.01

0.04

0.02

Color Colorless to Amber Colorless to Amber Pass
Resistance to oxidation –
weight change mg/cm2, max
  Aluminum
  Cast Iron
0.05
0.3
0.05
0.3
0.00
0.02
Water Tolerance
  Sedimentation @ 60°C (140°F), vol. % max

0.15

0.15

None
Effects on rubber cups @ 70°C (158°F)
  Base diameter increase, mm
    Hardness increase
    Hardness decrease, IRHD max

0.15–1.4
None
10

0.15–1.4
None
20

0.33
None
3.0
*Federal Motor Vehicle Safety Standard No. 116 (DOT 4)

**Society of Automotive Engineers (SAE) J1704

It meets or exceeds Federal Motor Vehicle Safety Standard (FMVSS) No. 116 (DOT 4) and surpasses Society of Automotive Engineers (SAE) J1704 specifications.

USAGE

Clean all dirt around the cover on the master cylinder before removing. Fill unit to level specified by manufacturer. Replace cover. Check fluid level once a month. To bleed the system, refer to the service manual. Do not reuse brake fluid from bleeding operation. CAUTION: Never wash cylinders or parts with gasoline, kerosene, or oil. Avoid spilling fluid on car finish or brake lining.

FOR PROFESSIONAL USE.
BG Products, Inc., accepts no liability for excessive use or misuse of this product.