一天后轮胎气压降低２ psi ，轮胎是不是有问题

最近一直在家工作，前天偶然发现一个轮胎看起来气不足，量了一下，大概１８psi，打足气到３１psi，今天再查下大概是２８psi，轮胎是新换的，是不是轮胎在漏气？现在疫情，去shop检查比较麻烦，是请他们来上门pickup;

thank you very much for your time and any input

所有跟帖： 

• call them and let them take care of it -tomcat801- ♂ (0 bytes) () 09/03/2021 postreply 15:03:55

• 可能是气温或者轮胎温度不一样的原因，可以过两天再测试一下 -soccer88- ♂ (0 bytes) () 09/03/2021 postreply 15:20:06

• 尽量同样的条件：气温， 阳光照射否？没有开动之前 -XYZ3- ♂ (0 bytes) () 09/03/2021 postreply 15:23:47

• 差不多情况，没开车前测的 -michaelusa2- ♂ (0 bytes) () 09/03/2021 postreply 15:38:41

• 漏气了，不是valve就是tire lips没装好 -MoonRiverMe- ♂ (0 bytes) () 09/03/2021 postreply 15:35:14

• ok, seems new tire not been installed properly -michaelusa2- ♂ (0 bytes) () 09/03/2021 postreply 15:39:27

• Soapy water spray can easily show the leak -MoonRiverMe- ♂ (0 bytes) () 09/03/2021 postreply 15:52:10

• got it, will do, yes, coz only need apply on valve/lip area -michaelusa2- ♂ (0 bytes) () 09/03/2021 postreply 16:09:46

• I would also spray along both tire lips, interior and outerior -MoonRiverMe- ♂ (0 bytes) () 09/03/2021 postreply 16:18:47

• yeah, interior is hard for me, coz, needs lift car a bit -michaelusa2- ♂ (132 bytes) () 09/03/2021 postreply 17:04:01

• It’s doable, if it’s at the front steer it all the way -MoonRiverMe- ♂ (168 bytes) () 09/03/2021 postreply 18:20:23

• yeah, but, I am just lazy :) -michaelusa2- ♂ (0 bytes) () 09/04/2021 postreply 06:07:27

• however, anyhow, needs to bring to shop to fix it -michaelusa2- ♂ (0 bytes) () 09/03/2021 postreply 16:11:23

• I fixed mine longtime ago by myself -MoonRiverMe- ♂ (176 bytes) () 09/03/2021 postreply 23:33:38

• 很多tire shop 都免费检查，如果有钉子，取出来也不收费 -3sporter- ♂ (0 bytes) () 09/03/2021 postreply 17:20:00

• it is new tire, the shop should fix it without charge -michaelusa2- ♂ (0 bytes) () 09/04/2021 postreply 06:08:02

• 慢煞气。有没有仔细检查了轮胎？有没有钉子？ 最好去轮胎店查查， 他们很容易查出来的。 -总要注册- ♂ (0 bytes) () 09/03/2021 postreply 17:23:06

• What is accuracy of your tire pressure gauge? (NT) -jassco- ♂ (0 bytes) () 09/03/2021 postreply 17:39:28

• Its accuracy doesn’t change overnight. -MoonRiverMe- ♂ (120 bytes) () 09/03/2021 postreply 23:28:16

• both meter and tire charger shows psi down -michaelusa2- ♂ (0 bytes) () 09/04/2021 postreply 06:09:06

• thanks for all the suggestions, helped me a lot ... -michaelusa2- ♂ (0 bytes) () 09/04/2021 postreply 12:59:20