Originally Posted by 98mustang_gt
I'm taking it to my mechanic on Tuesday. Is it okay if I drive it for about 20 miles like that?
Assuming your vent tube isn't clogged, it sounds like the crush washer was crushed too tight. I've seen this cause a light leak quite a few times. I'm betting a new crush washer will fix everything up!
How bad is the leak? very slow drips or a spill? If it's dripping very slowly, I wouldn't worry about the 20min drive to your mechanic. However, if it's dripping fast, it may be a good idea to tow it.