I have a Coleman that has the same numbers as the OP mentioned. It literally will not fill a 33” tire that is 6 lbs. low to 36 lbs. without cycling. That said, this thing has been a gem when it comes to breaking loose lug nuts that are torqued to 150 lb/ft while out in the driveway or breaking a ball joint loose in a tough spot. These aren’t the end all compressor but if the OP buys one I think he’ll use it frequently.