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Changing Brake Fluid at 10k AMSOIL or HD

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Old Jun 29, 2009 | 11:48 AM
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Default Changing Brake Fluid at 10k AMSOIL or HD

I'm going to flush my brake system during my 10k. Should I put the Harley-Davidson DOT 4 back in, or should I switch it to the AMSOIL (I know opinions are like......)?

Also, does anyone have a recommendation for a one man bleeding device - would be nice to have since I won't have an extra set of hands.
 

Last edited by ddwyer; Jun 29, 2009 at 11:49 AM. Reason: typo
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Old Jun 29, 2009 | 11:53 AM
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Just curious... Why are you changing at 10K?
 
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Old Jun 29, 2009 | 11:53 AM
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I use a vacuum bleeder from Mityvac. You will get good results from either the air operated or the hand pump variety. As far as fluid... Go to your local auto parts store and get DOT 4 there (unless you just want to go to HD for the same stuff). Since we aren't riding racing machines subject to extreme braking conditions, there is no need for hi-tech synthetic brake fluid. The chances of you heating yours up past the boiling point is extremely slim if not impossible. As you pointed out though... JMHO.
 
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Old Jun 29, 2009 | 11:55 AM
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Originally Posted by barkster99
Just curious... Why are you changing at 10K?
Sig says '08 Street Glide. 10k might be about the same time as the 2 year service life of brake fluid. Best guess.
 
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Old Jun 29, 2009 | 11:59 AM
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Damn,,,,guess I'd better change the brake fluid in my truck. It's been in there since 1997 and 156,000 miles.
 
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Old Jun 29, 2009 | 12:03 PM
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Originally Posted by matrix5
Sig says '08 Street Glide. 10k might be about the same time as the 2 year service life of brake fluid. Best guess.
Yep - 2 years will be in November. Since 10k is now, I figure I'll get it out of the way a few months early.
 
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Old Jun 29, 2009 | 12:05 PM
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Originally Posted by matrix5
I use a vacuum bleeder from Mityvac. You will get good results from either the air operated or the hand pump variety. As far as fluid... Go to your local auto parts store and get DOT 4 there (unless you just want to go to HD for the same stuff). Since we aren't riding racing machines subject to extreme braking conditions, there is no need for hi-tech synthetic brake fluid. The chances of you heating yours up past the boiling point is extremely slim if not impossible. As you pointed out though... JMHO.
Funny you mention the boiling point. For the first time this past weekend, I was in PA. I was riding four routines for my drill team back to back, and lost my rear brake due to the brake fluid bubbling. It was an interesting feeling using the front brake in the turns. I guess that answers the question - I'll give the AMSOIL a shot and see how it works out.
 
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Old Jun 29, 2009 | 12:10 PM
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Originally Posted by ddwyer
Funny you mention the boiling point. For the first time this past weekend, I was in PA. I was riding four routines for my drill team back to back, and lost my rear brake due to the brake fluid bubbling. It was an interesting feeling using the front brake in the turns. I guess that answers the question - I'll give the AMSOIL a shot and see how it works out.
Wow, I didn't even think about that. I guess constant friction even at slower speeds will do it. Front brakes will increase the pucker factor for sure.
 

Last edited by 07RoadHawg; Jun 29, 2009 at 12:38 PM.
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Old Jun 29, 2009 | 12:26 PM
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do you have any idea which Mityvac model number is the hand operated one, and what the ballpark retail price is?
 
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Old Jun 29, 2009 | 12:38 PM
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Here are the products on their website -

http://mityvac.com/pages/products_hvpk.asp

And the first site I found on google. About $35 or so

http://www.sjdiscounttools.com/mitmv8020.html
 
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