Question 1

Will it mix with the non synthetic fluid?

Accepted Answer

According to the Motul documentation: "Avoid mixing with polyglycols based brake fluid with lower performances. Do not mix with silicone (DOT 5 silicone base) or mineral base fluids (LHM)."

Question 2

Can you use this on 04 subaru wrx as the amazon fitment is saying no?

Accepted Answer

All Brake Fluid, including Motul 660, is a universal fluid that can be used in any motor vehicle's hydraulic brake system, including a Subaru WRX. However, Motul 660 is a much more expensive high temperature brake fluid designed for racing car applications on the race track where the brakes can glow red hot and regular specification brake fluid would boil and the brakes would fade. Unless you are racing your car or using the brakes really hard in repeated applications, you will not need such a higher specification and cost brake fluid like Motul 660.

Question 3

Is it normal that its a little darker (darker shade of yellow)? Just used it to flush and replace oil fluid

Accepted Answer

It will be darker when you flush brake system as it is mixing with the old brake fluid during the system bleed process.

Question 4

What is the date format printed on the bottle and is this a manufacturing date or expiration date?

Accepted Answer

Hi Robby,
Usually for the oil there is no expiration unless it is having contact with the air. As the brake fluid is hydroscopic, if you keep the bottle in cool, dry well ventilated place it should be good for a few years. The date is manufacturing date printed. Motul can answer better about it.
Regards.
Team 2to4wheels

ASIN	B004LF1U5O
Brand Name	Motul
Container Type	Bottle
Customer Reviews	4.8 4.8 out of 5 stars (1,582)
Flash Point	204 Degrees Celsius
Global Trade Identification Number	00182682992405, 03374650020501, 03374650235011
Item Weight	110 Grams
Liquid Volume	500 Milliliters
Manufacturer	モチュール(Motul)
Manufacturer Part Number	101666
Model Number	MTL101667
UPC	782645025470 182682992405
Unit Count	500.0 Milliliters

Motul 847205 RBF 660 Factory Line Dot-4 100 Percent Synthetic Racing Brake Fluid - 500 ml

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