Originally Posted by
WD40
I also decided to use the remainder of an extra-large can of A/C Pro (or whatever brand) to top-up my A/C, for as far as I know it's never been recharged. That was a few days ago and I think it blows a little cooler although all I did was move the pressure-dial from one spot in the "OK" range to another spot a little higher in the "OK" range. I have to do other stuff in the garage so I'll take a picture of the bottle before it ends up in the garbage.
Here's our low-pressure port (and no, it wasn't A/C PRO!)
But with this brand you can can screw the gauge off the bottle...
Keep it and you'll be able to check your low-side pressure even if you don't have an A/C gauge set.
Sitting in the CVS drive-through today I had to shut off the A/C it was so cold even on the lowest fan setting. And no, unless I'm defrosting I'm not much for using the temperature rheostat. If I can't moderate the A/C temp using the fan setting I just turn it off. I also think my A/C gets cold faster now. And with that the R134a I bought to charge my RAM pickup 4 or 5 years ago does me one final good deed!