QUOTE(guest54321 @ May 29 2025, 10:03 AM)
Ask yourself this question. Your fridge at home has been on since day 1 and the compressor keeps working until the end of time but why no company is telling you to service it by flushing the oil?
theres a few differences btw car ac and fridge/house aircon
the car ones use o-rings for all the joints, while fridge and house aircond copper pipe are soldered together. so while both are supposedly sealed systems, the car one is less sealed and will leak gas/oil slowly over time. most important is that the o-rings harden and age with time so this is a bigger problem with old cars.
also the conditions a car compressor runs in are far harsher than a house fridge or aircon, sitting inside a hot engine bay and been exposed to road conditions.
how does PAG oil flush help with this? not very sure, but perhaps car compressor oil breakdown faster than household fridge. most important is I guess when you bring to do a system flush the machines also does a full vacuum, recharge and topup of your system oil and thats what really helps keeping the compressor in shape.