substances when applied to a surfaces reduce the friction between surrfaces
hopes this help;)
All it is, is a natural lubericant.
For the bearings pretty much any axle grease will do. For the chain I prefer to use a low grade engine oil. These will do fine, although there are bike-specific lubes available if you're keen on spending more than functionally required.
Answer to ; civic door-lockHi, My Honda Civic CRX also had a sticky door-lock issue, and it was on the drivers side too. I have 2 possible ideas/solutions for your problem.... (#1) Two 'different' keys came with my 1985 Civic. Although they looked the same,they weren't. Only one key is for the door locks, the other key is to the ignition, to start the Engine. Even though the Engine key won't unlock the doors, it WILL fit into the door'locks,and its like you are forcing the key into the lock, just as you described. So, with that in mind, be sure you're using the 'right key' for the door lock. If keys are not the issue, then try #2; (#2) Spray the door-lock generously with some 'WD-40' or similar lubericant. Spray it 'into the inside' of the keyhole lock, then give a quick 'shot' of WD-40 to both sides of the key itself. *Spray from the exterior -outside- side of your car (don't spray any inside of car, it's smelly and messy) Wipe off any excess spray from the car and paint. Your Key should go in and turn lock easy after using the WD-40. Good luck! Improvement: It depends on the year and model. Many of the newer Hondas use sidewinder high security keys. These have the tendency to get broken wafers. Removal of the cylinder and taking it to a locksmith will be the easiest and least expensive way to fix the lock. Same for other locks where the key won't enter the keyway.