Mineral oil

houston26

Is all hydraulic mi real oil identical?

http://www.wiggle.co.uk/magura-royal-bl ... -oil-50ml/

Would this be ok to mix with red oil in my tektros?

If I were to flush and run new oil then how much would oil would I need?

nicklouse

http://www.halfords.com/webapp/wcs/stor ... yId_255218

Just over twice the price and 20 times the amount.

freezing77

http://www.machinerylubrication.com/Read/702/hydraulic-fluid-types

The above makes interesting reading. I have worked with very large and complex hydraulic systems for many years, these systems working at very high pressures (200 bar).

I agree completelywith the sentiments in the article.

houston26

nicklouse wrote:

http://www.halfords.com/webapp/wcs/stores/servlet/product_storeId_10001_catalogId_10151_productId_204265_langId_-1_categoryId_255218

Just over twice the price and 20 times the amount.

Brilliant, I've already got a bottle in the house. Even cheaper. Didnt realise it was the same stuff as power steering fluid

swod1

it depends as shimano only use mineral oil in there hydraulic disc brakes where as other makes will use the dot 5 fluid as used in cars

bennett_346

houston26 wrote:

Is all hydraulic mi real oil identical?

http://www.wiggle.co.uk/magura-royal-bl ... -oil-50ml/

Would this be ok to mix with red oil in my tektros?

If I were to flush and run new oil then how much would oil would I need?

Holy crap that's expensive :shock:

nicklouse

swod1 wrote:

it depends as shimano only use mineral oil in there hydraulic disc brakes where as other makes will use the dot 5 fluid as used in cars

no they do not. they use DOT3 or DOT4 or DOT5.1

No cycle brakes use DOT5

and just about no cars use DOT5

in fact the only real users are the US military and they are looking at getting rid of it.

dumdum

houston26 wrote:

nicklouse wrote:

http://www.halfords.com/webapp/wcs/stores/servlet/product_storeId_10001_catalogId_10151_productId_204265_langId_-1_categoryId_255218

Just over twice the price and 20 times the amount.

Brilliant, I've already got a bottle in the house. Even cheaper. Didnt realise it was the same stuff as power steering fluid

Just to make sure, it's LHM+, not power steering fluid or normal LHM fluid, the plus is the key

Kowalski675

nicklouse wrote:

swod1 wrote:

it depends as shimano only use mineral oil in there hydraulic disc brakes where as other makes will use the dot 5 fluid as used in cars

no they do not. they use DOT3 or DOT4 or DOT5.1

No cycle brakes use DOT5

and just about no cars use DOT5

in fact the only real users are the US military and they are looking at getting rid of it.

Dot 5 is still used in by some racers, but no road cars/bikes or cycles (like you say), and can't be mixed with DOT 3, 4 or 5.1 (as I'm sure you know yourself), since it's silicon based, rather than glycol based.

hard-rider

nicklouse wrote:

swod1 wrote:

it depends as shimano only use mineral oil in there hydraulic disc brakes where as other makes will use the dot 5 fluid as used in cars

no they do not. they use DOT3 or DOT4 or DOT5.1

No cycle brakes use DOT5

and just about no cars use DOT5

in fact the only real users are the US military and they are looking at getting rid of it.

Just to be clear about your answer. You saying "no they do not. they use DOT3 or DOT4 or DOT5.1" is referring to the second part of swod1's statement and not to the fact the Shimano use mineral oil - correct?

The Rookie

Flaming obvious he is really................

stubs

Kowalski675 wrote:

Dot 5 is still used in by some racers,

Well the racers must be mental DOT 5 is bloody awful stuff and its only I repeat only advantage is its fire resistantance. Its an absolute swine to bleed properly, you will never get all the air out as the air mixes in the fluid and cars that used it were all known for brakes that were of the brown trouser variety. The only thing its good for is bringing a lovely shine up on your tyres if your showing your car.