Shimano mineral brake fluid
I'm no stranger to DOT 3/4 brake fluid. I know that it attracts moisture and an open bottle should be discarded after a while. I also know that after it boils it's pretty useless also.
Is it the same for Shimano mineral fluid or is it much more resilient?
Is it the same for Shimano mineral fluid or is it much more resilient?
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I think mineral fluid is fine.ROAD < Scott Foil HMX Di2, Volagi Liscio Di2, Jamis Renegade Elite Di2, Cube Reaction Race > ROUGH0
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Mineral oil is (so far as I know) totally stable, it's not hygroscopic so doesn't attract moisture. Not sure about boiling points.
It's nicer to works with as it doesn't dry your skin or eat your paintwork.
It's downsides used to be about availability - you can get DOT anywhere you can get cars stuff - though that's far less of a problem.
There is also not the defined standards associated withthe various DOTs - DOT 4 is DOT 4 wherever and whoever you buy it from whereas There can be differences between the oils and each manufacturer will recommend their own over any other0 -
Shimano fluid doesn't go off or take on water.
It has a higher boiling point and less heat expansion than DOT fluid.
Not absorbing water is a double edged sword.
Not taking on water is great, but if any does get past the piston seals, it stays there in the worst possible place, whereas DOT fluid will distribute the water throughout the entire system and negate the effect until high levels are present.
In normal use though this is never a problem with shimano brakes and the fluid will get dirty and need changing long before water is a problem.0 -
Shimano fluid doesn't go off or take on water.
It has a higher boiling point and less heat expansion than DOT fluid.
Not absorbing water is a double edged sword.
Not taking on water is great, but if any does get past the piston seals, it stays there in the worst possible place, whereas DOT fluid will distribute the water throughout the entire system and negate the effect until high levels are present.
In normal use though this is never a problem with shimano brakes and the fluid will get dirty and need changing long before water is a problem.
thisleft the forum March 20230 -
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Shimano fluid is LHM with red rather than green dye.
Doubt it, shimano mineral is not very useful at very cold temperatures and most fat bike riders in the snow avoid it like the plague.
LHM is well known to work well at those temperatures.
I believe Shimano is proprietary.0 -
Shimano fluid is LHM with red rather than green dye.
Doubt it, shimano mineral is not very useful at very cold temperatures and most fat bike riders in the snow avoid it like the plague.
LHM is well known to work well at those temperatures.
I believe Shimano is proprietary.
Interesting....
I live in the frozen north (Aberdeen) so would it be of benefit to me to drain the Shimano and use this for winter?
https://www.123spareparts.co.uk/car-parts/COMMA/Brake-Fluid/p-132045250 -
I've been using LHM with Shimano fluid for a while with no problems. Sometimes just a tiny bit mixed in when bleeding a brake, other times after replacing a damaged hose replacing all the fluid.
I don't think Shimano invented a new type of brake fluid, it's the same stuff with different colour dye.0 -
Shimano fluid is LHM with red rather than green dye.
Doubt it, shimano mineral is not very useful at very cold temperatures and most fat bike riders in the snow avoid it like the plague.
LHM is well known to work well at those temperatures.
I believe Shimano is proprietary.
Interesting....
I live in the frozen north (Aberdeen) so would it be of benefit to me to drain the Shimano and use this for winter?
https://www.123spareparts.co.uk/car-parts/COMMA/Brake-Fluid/p-13204525
It's not as cold as you make it sound... if you were in the frozen prairies of Saskatchewan where temperature regularly dip into the -40s and occasionally -50s maybe, but Scotland isn't coldleft the forum March 20230
