A/C Pro Ultra Synthetic Recharge

Bought a car last fall and was made aware that the air wouldn't blow cold. We waited until the warmer weather started before running diagnostics. After replacing my compressor and drier, air was still blowing hot. The condenser was fine, so it was logical to think there was a lack of refrigerant (thanks to a leak). I scooped up this can and after filling to the correct pressure, my A/C was blowing ice cold. By lunchtime the next day, the pressure was back to zero so we used up the rest of the can from the day prior. Now the air is running cold without failing. The leak was sealed after the second use. Buying another can to top off today. I feel confident that the leak is fully sealed now and I expect to have cold air all summer!

Bought this as a newbie looking to charge a 2007 Honda Civic with intermittent loss of A/C. The incomplete and imprecise instructions contributed to confusion and problems while utilizing the product for a recharge. Pros: 1) Cheap. Much less expensive than an auto repair shop. Close to the same rate as most diagnostic services. 2) Makes it seem easy and doable. 3) Quasi quantitative gauge makes it possible to have some idea how much pressure there is in the low side of an A/C system. Cons: 1) No description of "Static Pressure," nor how that compares to "Dynamic Pressure." Not even use of "Dynamic Pressure" terminology to describe how the product is utilized. Thus, lacks terminology that is commonly used for A/C systems. This makes it harder to understand application of the product. For instance, if the condenser clutch disengages, and then the low side pressure rockets upward into the red zone, there is no information on the can, nor their phone application, nor their website that communicates that this can represent normal Static Pressure, and not an emergent excess pressure situation. 2) Lacks description of whether or not it contains oil to replace that which can be lost with refrigerant loss. Does describe that it contains "3 oz additives," of which includes "sealant," but nothing about oil. This leaves a newbie novice (like me) to wonder if it's then necessary to add A/C oil at the same time. 3) A/C Pro doesn't offer a refrigerant without "sealant" as far as I can tell. So if you don't want a sealant as part of your recharge, you have to look elsewhere? Because of these shortcomings, and my own unfamiliarity with recharging auto A/C systems, it seems that I ended up over-charging the car's A/C system. Then after the clutch disengaged (protectively, I later learned), and the needle shot up into the red zone, I likely over-drained it in a mistaken effort to protect the A/C system. If I could do it over, I'd buy a real gauge and probably different refrigerant.