Brake fluids are classified by both “dry boiling point” and “wet

Brake fluids are classified by both “dry boiling point” and “wet boiling point.” They are also classified by US Department of Transportation (DOT) rating, DOT 3, DOT 4, DOT 5, and DOT 5.1.

Dot 5 and Dot 5.1好很多，但是注意换和加的时候一定要按照手册

 

Fluid                 Dry ERBP (°F)           Wet ERBP (°F)         Viscosity Limit              Chemical

Grade               @ 0.0% H2O          @ 3.7% H2O          (Cp @-40°F)                       Composition

 

DOT 3               401                          284                          1500 mm2/s           Glycol Ether Based

 

DOT 4               446                          311                          1800 mm2/s           Glycol Ether / Borate Ester

 

DOT 5 (SSBF)   500                         356                          900 mm2/s              Silicone Based

 

DOT 5.1            500                         356                          900 mm2/s              Borate Ester/ Glycol  Ether

所有跟帖： 

• DOT 3,DOT 4,DOT 5.1是向下兼容的，DOT 5 is another story though！ :-DDD -Oneshotkill- ♂ (278 bytes) () 09/16/2016 postreply 10:40:45

• 查一查我的2015大切和2014Ram手册都没有要求换 -soccer88- ♂ (0 bytes) () 09/16/2016 postreply 12:23:20

• 据说DOT5和DOT3,4混合会炸 -周老大- ♂ (0 bytes) () 09/16/2016 postreply 23:44:00

• 我没换过, 也不知道dot3 dot4 dot5 是什么东东, 只要不影响驾驶就行 -fuelinjector- ♂ (0 bytes) () 09/16/2016 postreply 12:54:50

• 我多年前因没换过刹车油差点出过 事 -planet- ♂ (249 bytes) () 09/16/2016 postreply 20:05:18

• 用重力法换brake fluid很容易。我是三年换一次。 -yanif- ♂ (0 bytes) () 09/16/2016 postreply 17:19:35

• 怎么个重力法？ -MoonRiverMe- ♂ (0 bytes) () 09/16/2016 postreply 18:58:26

• 打开让它各儿慢慢流呗 -Oneshotkill- ♂ (0 bytes) () 09/16/2016 postreply 19:00:55

• 这个里面会有空气，危险 -soccer88- ♂ (0 bytes) () 09/16/2016 postreply 19:07:16

• 进空气没可能吧？最多多吸收些空气中的水分而已，一人就干又没额外成本，挺好的！ -Oneshotkill- ♂ (0 bytes) () 09/16/2016 postreply 19:18:50

• 这样个流法能流到猴年马月？ -MoonRiverMe- ♂ (53 bytes) () 09/16/2016 postreply 20:41:16

• 此法可以保证不进空气，只需一人。缺点是慢。 -yanif- ♂ (0 bytes) () 09/17/2016 postreply 04:20:16