I switched back to step colders. Inspecting my stock heat plugs there was some slight blistering on the plugs. But today after running to the store my car took 3 cranks to start. When the car is cold it usually starts pretty easy, but when it’s warm it seems to struggle to start. I’m going to switch to 93 to see if that helps with starting. Anyone else have this issue with step colders and ethanol?