Z51 DOT 3 to DOT 4 - So Cal
11-05-2018, 09:33 PM
#2
Team Owner
Member Since: Sep 2000
Location: Far NW 'burbs of Chicago
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St. Jude Donor '13
Any shop that can completely flush your brake fluid can do the job. On the C6, it required use of the scan tool to cycle the ABS and get all the old fluid out of there, I expect the C7 is similar. Flushing without the ABS is better than nothing, but I don't know how much old stuff gets left behind.
We have a local dealer with a very good tech, so I have him do a flush every year when I switch from the winter AS tire to the summer PSS.
There are big variations in the temperature tolerance of DOT4, the problem is that often the higher temps fluids tend to absorb moisture more rapidly which degrades their heat resistance and can eventually promote corrosion inside the brake system.
In the Ask Tadge section, he explains why they specify DOT3 for street use and high temp fluid for the track. Since I do autocross and canyon runs but not hard track use, I go with the once-a-year DOT4 flush.
We have a local dealer with a very good tech, so I have him do a flush every year when I switch from the winter AS tire to the summer PSS.
There are big variations in the temperature tolerance of DOT4, the problem is that often the higher temps fluids tend to absorb moisture more rapidly which degrades their heat resistance and can eventually promote corrosion inside the brake system.
In the Ask Tadge section, he explains why they specify DOT3 for street use and high temp fluid for the track. Since I do autocross and canyon runs but not hard track use, I go with the once-a-year DOT4 flush.
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911Hunter (11-10-2018)
11-10-2018, 08:14 AM
#3
Burning Brakes
Any shop that can completely flush your brake fluid can do the job. On the C6, it required use of the scan tool to cycle the ABS and get all the old fluid out of there, I expect the C7 is similar. Flushing without the ABS is better than nothing, but I don't know how much old stuff gets left behind.
We have a local dealer with a very good tech, so I have him do a flush every year when I switch from the winter AS tire to the summer PSS.
There are big variations in the temperature tolerance of DOT4, the problem is that often the higher temps fluids tend to absorb moisture more rapidly which degrades their heat resistance and can eventually promote corrosion inside the brake system.
In the Ask Tadge section, he explains why they specify DOT3 for street use and high temp fluid for the track. Since I do autocross and canyon runs but not hard track use, I go with the once-a-year DOT4 flush.
We have a local dealer with a very good tech, so I have him do a flush every year when I switch from the winter AS tire to the summer PSS.
There are big variations in the temperature tolerance of DOT4, the problem is that often the higher temps fluids tend to absorb moisture more rapidly which degrades their heat resistance and can eventually promote corrosion inside the brake system.
In the Ask Tadge section, he explains why they specify DOT3 for street use and high temp fluid for the track. Since I do autocross and canyon runs but not hard track use, I go with the once-a-year DOT4 flush.
Since I don't track my car, I just like to do spirited driving, I ordered a higher heat tolerance DOT3 : Wilwood's Hi Temp 570 Racing brake fluid for my next brake fluid change. It would have a higher heat tolerance compared to the stock fluid and would not absorb moisture compared to DOT 4 that needs earlier fluid replacement compared to the longer lasting DOT 3. For me I think it would be a middle ground solution between DOT 4 performance and DOT 3 longevity.
12-04-2018, 04:18 AM
#4
Supporting Vendor
Member Since: Sep 2013
Location: Harbor City California
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OP we do brake fluid changes as well as LOTS of other things.
We would recommend Motul DOT4!!!
https://www.americanheritageperformance.com/
https://www.yelp.com/biz/american-he...ce-harbor-city
We would recommend Motul DOT4!!!
https://www.americanheritageperformance.com/
https://www.yelp.com/biz/american-he...ce-harbor-city
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sallen619 (12-04-2018)