Right. But I often hear that older hoses are "gunked" and effectively seal the material as well as a new barrier hose. I guess I'll find out, depending on the result of the system leak test. My neighbor has a box of R134a canisters, a manifold gauge set, and a vacuum pump (his old Maxima had chronic AC issues so he bulked up on tools and supplies, which have been sitting for the past year), so we'll know what's what soon enough.
Question. Since I'm converting from R12 to R134a, and since my new Sanden compressor came shipped with PAG 46 oil already installed, should I drain that in fill up with ester oil? Everyone says any residual oil in the system will foul PAG oil and ruin the compressor, but ester oil is tolerant of small quantities of old mineral oil that might be hiding out. Easy enough to do, just curious if it's a prudent course of action.
Expansion valve is out and I'm ready to flush the evap and lines this weekend. AZ flush bottle, conversion-safe solvent, and lots of towels.
as good as a car can be... briefly.