Wet, dry and wax lubes for the higher loads e-bike drivetrains see.
E-bike drivetrains work harder than pedal-bike drivetrains. A mid-drive motor multiplies your pedaling torque through the chain, and even a hub-motor bike spends more time at speed with a heavier rider-plus-bike load. The result is faster chain wear, more stretch, and louder, rougher shifting if the chain runs dry. A few dollars of the right lube, applied regularly, is the cheapest way to extend chain, cassette and chainring life, and it is one of the few maintenance tasks every owner can do in five minutes.
Lubes come in three broad families. Wet lubes are oily, stick around in rain, and handle high loads well, but they attract dust and form a grinding paste if you do not wipe the chain. Dry lubes go on wet and dry to a waxy or Teflon-style film that stays cleaner in dusty conditions but washes off quickly in rain and needs more frequent application. Wax-based lubes, either drip-on or hot-melt immersion, run the cleanest and quietest and are excellent for e-bikes once the chain is properly prepped, but they require a degreased chain to start and a bit more ritual.
North Texas is dry and dusty most of the year with occasional heavy rain, and the heat thins oily lubes. For most riders that points toward a dry or wax drip lube as the default, with a wet lube reserved for a rainy stretch. Whatever you choose, the technique is the same: clean the chain, apply a drop per roller while backpedaling, let it penetrate, and wipe off the excess thoroughly. A shiny, dripping chain is over-lubed; a quiet one with a dull film is right.