I was told not to use WD40 - because it leaves marks on your door and collect dirt. WD40 is oil based. Use the other one, at HD, it is on the same shelf as WD40. The name is something like "garage door lubricant"... read the direction - it says " .. no marks on door etc.."
【在 z*****z 的大作中提到】 : WD40
f*b
7 楼
garage door lubricant/grease check your door opener, tune-up the pulling force. check springs/pulley if your door has.