Post by: Trigger on January 15, 2018, 02:49:43 PM
Post by: RGP750 on January 15, 2018, 02:52:11 PM
Image result for difference between dot 5 and 5.1
Since DOT 4 and 5.1 are both glycol-based brake fluids they are compatible with each other, which means they can be readily mixed without harming your brake system. It is important never to mistake DOT 5.1 (glycol-based) with DOT 5 which is silicone-based and should never be mixed with any other DOT fluid.
Post by: Trigger on January 15, 2018, 03:00:48 PM
Found this Trigg
Image result for difference between dot 5 and 5.1
Since DOT 4 and 5.1 are both glycol-based brake fluids they are compatible with each other, which means they can be readily mixed without harming your brake system. It is important never to mistake DOT 5.1 (glycol-based) with DOT 5 which is silicone-based and should never be mixed with any other DOT fluid.
Interesting, but why not just use DOT 4 ? Any benefits to using 5.1 or draining the whole system and using DOT 5 ?
Post by: Green1 on January 15, 2018, 03:18:58 PM
I think it also has a higher boiling point not that that's ever an issue for road use.
Post by: Moorey on January 15, 2018, 03:25:41 PM
Post by: Green1 on January 15, 2018, 03:28:38 PM
I don't trust the paintwork claim. Someone needs to try it out. ;D
Post by: UK Pete on January 15, 2018, 03:43:52 PM
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Post by: Laverda Dave on January 15, 2018, 03:50:24 PM
Post by: Trigger on January 15, 2018, 05:40:09 PM
That's what I said :P
I don't trust the paintwork claim. Someone needs to try it out. ;D
Buy a litre and send it to me, I have some tanks to try it on ;D ;D ;D
Post by: Green1 on January 15, 2018, 05:50:41 PM
Still haven't touched the dam thing finally get the free time but been too ill to do them. >:(
Post by: Trigger on January 15, 2018, 06:04:06 PM
I will buy you a litre and personally deliver it to your door if you do my pegaso headrace bearings. ;D
Still haven't touched the dam thing finally get the free time but been too ill to do them. >:(
It is a Italian bike, just squeeze another bit of tin foil in the gap ;)
Post by: Moorey on January 15, 2018, 06:10:23 PM
Post by: Green1 on January 15, 2018, 06:11:33 PM
Nothing wrong with Italian bikes.
Post by: Trigger on January 15, 2018, 06:19:31 PM
Your getting as bad as Hairy ;)
Nothing wrong with Italian bikes.
Never seen you on one yet ;)
Post by: Green1 on January 15, 2018, 06:23:53 PM
Post by: hairygit on January 15, 2018, 07:03:31 PM
My Guzzi managed about 1000miles before springing a leak and the Aprilia managed about 300miles this year what more do you want . ;DEnough said! You drop yourself in it every time, you come onto a Honda forum, and complain about how unreliable and expensive to fix your piles of Italian dung are, then whine if we take the piss! What do you expect????
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Post by: Laverda Dave on January 15, 2018, 07:50:15 PM
Post by: SteveW on January 16, 2018, 11:15:10 AM
DOT 5 is hydrophobic.
I thought that was a fear of water :o
Post by: Green1 on January 16, 2018, 11:44:48 AM
Hondas are great if you need to get to your destination. Italian bikes make the day all about them and make the day a little more interesting as your never to sure your day is going to go to plan.
Post by: Rozabikes Tim on January 16, 2018, 11:51:24 AM
Exactly - it does not absorb it! Hyrdroscopic on the other hand does attract water per "normal" brake fluid....DOT 5 is hydrophobic.
I thought that was a fear of water :o
Post by: gtmdriver on January 16, 2018, 01:57:16 PM
If you use silicone fluid in a system previously filled with a non silicone fluid you need to change all the seals apparently otherwise they will swell.
You do need to flush the system thoroughly as the two fluids are not mixable but you don't need to change the seals.
However if you happen to be rebuilding or reconditining the hydraulic system then that is obviously a good time to switch to silicone fluid should you wish to do so.
Post by: Laverda Dave on January 16, 2018, 06:17:24 PM
All the above said though, I'd never sell any of my bikes, they are all unique and all have a character of their own. Bikes are brilliant full stop ;D
Now back to the brake fluid thread....... :o
Post by: hairygit on January 16, 2018, 06:34:17 PM