Wd 40 is for light duty lubrication and freeing up sticking or partially rusted hinges and a car door latch.
Door latch lithium grease.
You can also use silicone spray on the door latches because they also often contain nylon or plastic parts.
White lithium grease is ideal for the hood and trunk hinges.
Fixing a few stubborn locks might involve disassembling cleaning and then reassembling the lock.
Spray the hinges after you wipe them clean with a cotton or microfiber cloth.
Many people put up with the aggravation of a sticking door lock for years.
First clean the keyhole with a penetrating lubricant like wd 40.
White lithium grease is ideal for the hood and trunk hinges.
You can also use silicone spray on the door latches because they also often contain nylon or plastic parts.
These two 8 ounce tubes will last you a while so for just 13 you.
Move the hinges to ensure the lubricant works into the areas around the moving parts.
3 in one professional garage door lubricant with smart straw sprays 2 ways 11 oz 4 6 out of 5 stars 2 363 lucas oil 10533 white lithium grease 8 oz.
Spray the hinges after you.