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Is It Ok To Mix Conventional and Synthetic Brake Fluids Forums > > Is It Ok To Mix Conventional and Synthetic Brake Fluids Is It Ok To Mix Conventional and Synthetic Brake Fluids
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  #1  
Old 03-26-2011, 11:09 AM
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bennyb53 bennyb53 is offline
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Default Is It Ok To Mix Conventional and Synthetic Brake Fluids

Hey guys, I need to top off my brake fluids a bit. So I picked up this synthetic brake fluid. I just realize this is my first time to do it in 8 years I owned my 02 Altima.

I assume the OEM brake fluid is conventional type. Should I use conventional also? Or is it safe to use synthetic. Your input is much appreciated.
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Old 03-26-2011, 01:08 PM
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mpe235 mpe235 is offline
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Quote:
Originally Posted by bennyb53 View Post
Hey guys, I need to top off my brake fluids a bit. So I picked up this synthetic brake fluid. I just realize this is my first time to do it in 8 years I owned my 02 Altima.

I assume the OEM brake fluid is conventional type. Should I use conventional also? Or is it safe to use synthetic. Your input is much appreciated.
As long as it says DOT 3 compatible you should be ok. Do not mix it with a silicone based DOT 5 fluid.
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Old 03-27-2011, 12:26 AM
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bennyb53 bennyb53 is offline
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Thanks mpe325. I did pick up DOT 3 because that's what the service manual say. Its Super Tech synthetic DOT3. The label does not say its compatable with any DOT 3 brake fluids.

I have a couple questions if you don't mind since you are the Pro:
1. If I replace the old fluid that's in the system now, can I do it by bleeding just one side first until most fluids in reservoir are gone.

2. Then refill the reservoir and bleed each wheel to remove old fluids in brake lines and possibly some air.

3. Or do I keep filling the reservoir while bleeding to keep air out of the system.

Thanks so much for your time.
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Old 03-27-2011, 03:48 AM
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Originally Posted by bennyb53 View Post
Thanks mpe325. I did pick up DOT 3 because that's what the service manual say. Its Super Tech synthetic DOT3. The label does not say its compatable with any DOT 3 brake fluids.

I have a couple questions if you don't mind since you are the Pro:
1. If I replace the old fluid that's in the system now, can I do it by bleeding just one side first until most fluids in reservoir are gone.

2. Then refill the reservoir and bleed each wheel to remove old fluids in brake lines and possibly some air.

3. Or do I keep filling the reservoir while bleeding to keep air out of the system.

Thanks so much for your time.
The easiest way to change the fluid is to suck the fluid out of the resevoir and then refill it with new fluid. Then you will bleed the brakes until clean fluid comes out of the bleeder. A turkey baster works well for removing the fluid and they are available at most dollar stores.
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