Well, normally, in the gas pressure washers, you need to buy the one that can give you around 2,000 to 2,800 pounds per square inch (psi) of water pressure, whereas vs. 1,000 to 1,800 psi would be suitable for the electric pressure washers.
Gas pressure washers can deliver to you with the three times more pressure of water to clean those stubborn and unwanted marks so perfectly. Choose the one that gives you a better and large PSI and GPM to experience a versatile cleaning.