Dropshipping without fb ads etc.

Hello. I have question about dropshipping. I thought to dropship from aliexpress car & motorcycle accesories like indicators, mirrors, airfreshes, wipers etc. but I'm not sure about this. Is it to possible to make any sales by posting my web only on groups and thematic fanpages, without fb ads, insta? Or dropshipping is based only on this? I wonder because I have no idea why somebody would prefer to buy in my shop few % cheaper then on my local country ebay or straight from aliexpress….

Dropshipping without fb ads etc.