DCA Binance Spread

When using Dollar-Cost Averaging (DCA) on Binance, they advertise a 0% fee for the service. However, I’m curious about the spread—how significant is it? While there are no direct fees, does the spread increase when DCAing, and if so, by how much? Understanding the spread is crucial to gauge the actual cost-effectiveness of using Binance for DCA. Any detailed insights on this would be helpful!