are all brake fluids the same if they're Super DOT 4 is there any diff between the brands? like there is with oils having different qualities. will be getting mechanic to do fluid when he does cambelt at end of month.

no they're most definately not.

i use/sell and race on motul rbf600 which on paper is a dot4 fluid, but in practice is a very high dry boil point fluid, within 5'C of the uber expensive Castrol SRF regarded as "the best" fluid for serious use.

I regard Motul RBF600 as the best affordable fluid in my own experience, having tried all sorts of race and performance fluids to no avail, until I came across the motul.

top fluid, and hard to beat

but to answer your question, no a dot 4 is not a guarantee of being the same performance, nor that a dot 5.1 will be "better" as it likely wont.

regards

bill

is it generally a case of you get what you pay for?

interesting as i need to get some next week.

Well, just to add another angle to this... if your going to need uber high performance fluid for use on the road then you shouldn't be on the roads!!!!

Halfords 5.1 is about £9-£10 a litre. You wont go wrong with this stuff for the price.

what is normally in the octy2?

what is normally in the octy2?

Probably dot 4

Well, just to add another angle to this... if your going to need uber high performance fluid for use on the road then you shouldn't be on the roads!!!!

thats one of the stupidist things i've read in a while...lmao

the post is about fluids and are they all created equal? which they're not.

NOT EVERYONE uses their cars on the roads alone do they!

is it generally a case of you get what you pay for?

not really.... just read the specs if they have them and or searchy on car forums for who uses what and finds it.

depends on your use at the end of the day being serious for a moment... but some fluids dont cope so well with high temps (spritied driving in heavy cars) and theres nothing worse than a pedal which sinks into the carpet when you need it most. muchos scarey moments. If you've ever had this then you would know. If you have'nt you clearly done use the brakes that harde to generate that heat, so almost any branded fluid would suffice.

BUT not all fluids are created equal, and for those who experience the long pedal, will want to look to use fluids like motuls rbf600 or equivalent.

is there any difference between the vag one and one from say a motorist discount shop?

cool ive had a few scary moments in the past with brake pedals and as im looking to do trackdays this summer i want to know ill be able to stop when i need to.

ill not worry to much about the specific brake fluid from what ive read as ill just tell mechanic to put good super dot four stuff in and he will no dought either no what to use or do some of his own research 1st.

is there any difference between the vag one and one from say a motorist discount shop?

you would need to read their spec sheets to tell.

dry and wet boil points being the important bits re temp performance

cool ive had a few scary moments in the past with brake pedals and as im looking to do trackdays this summer i want to know ill be able to stop when i need to.

ill not worry to much about the specific brake fluid from what ive read as ill just tell mechanic to put good super dot four stuff in and he will no dought either no what to use or do some of his own research 1st.

Some guys get good results from ATE Super Blue, I run Motul RBF600... and if you consider track use try to duct some air to the brakes also..

enjoy

Some guys get good results from ATE Super Blue, I run Motul RBF600... and if you consider track use try to duct some air to the brakes also..

enjoy

i use this fluid in conjunction with 312mm conversion and ferrodo ds2500 pads,did blyton a week ago,tight short track with 2 braking points from 90mph so big stops ad often,no sign of brake fade all day:thumbup:

will have a look into how i can vent some air onto the brakes, would just say a pipe routed from grill in bumper through into near inside of wheel so air would be channeled through to back of disc be ok?

should be fitting my new discs and mintex extremes on tuesday.

will have a look into how i can vent some air onto the brakes, would just say a pipe routed from grill in bumper through into near inside of wheel so air would be channeled through to back of disc be ok?

should be fitting my new discs and mintex extremes on tuesday.

yea try to duct from grill or scoops in bumper whichevers easiest to route to blow to the caliper/disk inner face

you can sometime get/make deflectors mounted on the leading edge of the wishbones to also direct air onto the calipers which is worth a go also.

regards

bill

thats one of the stupidist things i've read in a while...lmao

the post is about fluids and are they all created equal? which they're not.

NOT EVERYONE uses their cars on the roads alone do they!

You might have missed the point of what I was trying to say and I suppose it didn't come across too well. All fluids are most certainly not equal.

The point of what I was trying to make is that you dont need to spend £25 on a litre of fluid if your not doing 20 laps of Brands Hatch. If you find normal and by normal I mean something under a tenner a litre) fluid inadequate for road use then your not driving right and not driving within the limits of your machine. I have only every boiled my fluid three times and twice was at Coomb. The third time was when I used to run a Mini but thats another story.

NOT EVERYONE uses their cars on a track do they!

what is normally in the octy2?

Dot 4, but I put whatever DOT 5.1 JKM used and get a marked improvement in the brakes. The car was only 18 months old at that point too.

got a bottle of it tonight from the vw dealer, one size does all, dot 4. did ask if i needed dot 5 and was told all of them are dot 4. then asked if they sold smaller bottles than 1 l bottles and the answer was no too (only needed to top up from halfway to max). found it an a-se to get to and get the top off the brake fluid chamber.

You might have missed the point of what I was trying to say and I suppose it didn't come across too well. All fluids are most certainly not equal.

The point of what I was trying to make is that you dont need to spend £25 on a litre of fluid if your not doing 20 laps of Brands Hatch. If you find normal and by normal I mean something under a tenner a litre) fluid inadequate for road use then your not driving right and not driving within the limits of your machine. I have only every boiled my fluid three times and twice was at Coomb. The third time was when I used to run a Mini but thats another story.

NOT EVERYONE uses their cars on a track do they!

Although not essential for road use, there are situations where it is possible to get the brakes really hot without driving excessively quickly. One situation I had recently involved a 1 1/2 hour drive down predominantly C roads.

Lots of changes of speed between around 20 and 60 mph caused a lot of heat to build up in the braking system. No problem (apart from partially warped Brembo discs) as my system has suitable pads and fluids, but the pace I was moving at was not by any means excessive (applying "the system" to the letter). I know that inferiro or old fluid could have caused problems here.

Something else to note with brake fluid, it soaks up water and thus should be changed regualrly. 2 years is a maximum, one year is wiser and if tracking the car or seeing big brake system temperatures, more often is better.

Another vote for RBF 600 here.

Chris

Yet another vote for RBF600 here.