Best tool to flush old brake fluid quickly and easily?

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May 5, 2025 at 6:54 pm #340 Reply
Major
What is your favorite way / tool to flush old brake fluid with new?

My 2013 Kia Optima with 100k Kms / 60k miles has some murky brake fluid in the calipers.

Pump, hold, open bleed screw, close bleed screw is very slow and painful. Need a better way.
May 5, 2025 at 6:54 pm #341 Reply
Jaime
Pressure bleeding is the best way if you have the set-up. Otherwise, pedal bleed for best results. The last option is vacuum bleeding, but always a potential issue with ABS systems.
May 5, 2025 at 6:55 pm #342 Reply
Richard
In my race car, I’ll pull everything out of the MC with a turkey baster type siphon tool and fill with fresh.

Then I bleed one corner at a time, starting with the furthest from the MC.

Can do it with someone in the seat, or a VAC/press bleeder. Wait until you see clear fluid coming out.
May 5, 2025 at 6:55 pm #343 Reply
Richard
Pressure bleeder works great. Look up Motive Bleeder. Or they sell ones that use a compressor.
May 5, 2025 at 6:56 pm #344 Reply
Orion
If you don’t want to buy anything and just get it done. Suck out old fluid from MC with turkey baster or large syringe. Top off with fresh fluid, then open all 4 bleeders and let it gravity bleed for 15 to 20 mins while watching and topping off MC. Never let it run empty. Then bleed normal to confirm new fluid coming out.
May 5, 2025 at 6:56 pm #345 Reply
Michael
With an expensive pressure bleeder one also needs an air compressor, suck old from MC, then add clean fluid & bleed normally till fluid is clear, refill MC.
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Best tool to flush old brake fluid quickly and easily?

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