I use this product on 4 vehicles, and honestly it does its job quite well. However, one vehicle had not one but TWO proportioning valves leak about 2 years after the flush. I don't want to blame the fluid, and the second valve was from a donor (they are impossible to buy new). When I took apart the first valve, I couldn't help but notice tiny pits and a bad sealing area on the O-ring sealing seat. BTW the vehicle is a 95 Lincoln conti.
Now, I'm going to be changing an ABS unit too on this vehicle(I believe it is an electronic issue - unrelated to fluid), and I decided to check the MSDS on this product, and I noticed a very scary ingredient - Sodium Hydroxide. I don't know if all brake fluids have this additive, but when I read that I cringed because I know from chemistry it is the most hygroscopic compound known to man (water isn't friendly to metal). I checked many other brake products and none of them list it in the MSDS (unless they omit it).
I also recall that it isn't too friendly to some metals, so I did some research:
http://www.roymech.co.uk/Useful_Tables/Corrosion/Corr_metals_1.html
http://www.engineeringtoolbox.com/metal-corrosion-resistance-d_491.html
Hopefully there is no bronze in that valve!
Again, I'm not blaming the fluid, works great on the other cars, but two failures kinda makes you think. I would think they would put that in to buffer acids in the system? I think they make great products but I'm really having second thoughts about using it in an older car.
http://msds.ashland.com/msds-ext/materialSearch.do
Select: Material Number
search for: 601457
POLYETHYLENE GLYCOL MONOMETHYL ETHER
9004-74-4
>=20- TRIETHYLENE GLYCOL MONOMETHYL ETHER
112-35-6
>=20- TRIETHYLENE GLYCOL MONOBUTYL ETHER
143-22-6
>=15- TETRAETHYLENE GLYCOL
112-60-7
>=5- DIETHYLENE GLYCOL
111-46-6
>=1.5- TRIETHYLENE GLYCOL
112-27-6
>=1.5- SODIUM HYDROXIDE
1310-73-2
>=1-span>
DIISOPROPANOLAMINE
110-97-4
>=1-<1.5%
Now, I'm going to be changing an ABS unit too on this vehicle(I believe it is an electronic issue - unrelated to fluid), and I decided to check the MSDS on this product, and I noticed a very scary ingredient - Sodium Hydroxide. I don't know if all brake fluids have this additive, but when I read that I cringed because I know from chemistry it is the most hygroscopic compound known to man (water isn't friendly to metal). I checked many other brake products and none of them list it in the MSDS (unless they omit it).
I also recall that it isn't too friendly to some metals, so I did some research:
http://www.roymech.co.uk/Useful_Tables/Corrosion/Corr_metals_1.html
http://www.engineeringtoolbox.com/metal-corrosion-resistance-d_491.html
Hopefully there is no bronze in that valve!
Again, I'm not blaming the fluid, works great on the other cars, but two failures kinda makes you think. I would think they would put that in to buffer acids in the system? I think they make great products but I'm really having second thoughts about using it in an older car.
http://msds.ashland.com/msds-ext/materialSearch.do
Select: Material Number
search for: 601457
POLYETHYLENE GLYCOL MONOMETHYL ETHER
9004-74-4
>=20- TRIETHYLENE GLYCOL MONOMETHYL ETHER
112-35-6
>=20- TRIETHYLENE GLYCOL MONOBUTYL ETHER
143-22-6
>=15- TETRAETHYLENE GLYCOL
112-60-7
>=5- DIETHYLENE GLYCOL
111-46-6
>=1.5- TRIETHYLENE GLYCOL
112-27-6
>=1.5- SODIUM HYDROXIDE
1310-73-2
>=1-span>
DIISOPROPANOLAMINE
110-97-4
>=1-<1.5%