Air conditioner system

Wrenchtech, Sure seems they sell alot more PAG 100 around here & I was checking some prices at Autozone, they list some that must be gold! PAG 46 8 oz. For $56, 68. 75. & Even a 6 oz for $176! Unless these are strange typos. But did find some 8oz for $9-10. Though there was a charging one of 3oz for $7. So they come with or without UV dye & some come with ICE. Than the R134a most come 12 oz. Plain $10, with dye $20, with ICE $19. With stop leak $15-20. Do I want oil with dye & 134 with ice or sealant or just plain? Thanks.

You wonder why they sell all those options, just to make more money for stuff we don't need but people think they do?

Hi Wrenchtech, so I worked on my project on Sat. Compressor came out easily, oil was clean in it, drier was clean also as well as the lines. Added oil to drier, & new orings to lines, compressor in. Than hooked up manifold gauges & vacuum pump, seemed to hold pressure like should, but when trying to charge, compressor would not kick in, even trying to bypass with drier switch & was not pulling in any refrigerant. After some time we looked at the manifold, some orings looked iffy but I think the real problem was the connectors to high & low side were not opening the schrader valves. We tried a can with a hose & it started filling up. After needing to visit a few Auto Zones finally got a decent manifold & restarted process. This time compressor kicked in quickly & got it charged up. (It amazes & saddens me that AZ is providing these tools for us to rent for FREE & people just abuse them although perhaps the workers also don't maintain the equip.) Anyway I do notice often when starting the AC a squeal for about 5-10 seconds. Don't want any issues with my new compressor. Wondering if it is my belt tensioner & need to replace that?