Skip the auto shop - Our mechanics make house calls

Q: Volume of oil for new AC compressor and dryer?

asked by on

I am replacing the compressor and dryer on my ac system and am having trouble determining how much oil to use. Any ideas? Thanks! John

My car has 120000 miles.

The new compressor may have a sticker on it or there may be information within box of the compressor indicating the correct oil type and amount to use. The drier should have one once it’s put in. Most new compressors will take about eight ounces. Make sure the correct oil is used and the amount is used. The new compressor may already have oil in it. You could also check for a sticker under the hood stating how much oil and refrigerant the system takes. Each major component other than the compressor counts for one ounce of oil each. The compressor will get the rest but do not put less than 6 oz in the new compressor. If you’re unable to figure it out, feel free to contact a certified technician, like one from YourMechanic, to assist you with the proper replacement of you your A/C Compressor.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Tried pressing the clutch pedal and it just flew to the floor. It wouldn't come back until I brought it up myself.

Hi. The most likely cause of this problem is the clutch master cylinder has a leak or has just completely failed. The clutch master cylinder gives your clutch pedal the proper pressure to engage the clutch so the transmission can...

Q: A/C blows warm when car is idling

First check to make sure the front of the condenser is clean and free of bugs or debris. Try and spray it with a lower pressure hose or car wash hose from farther away and clean it out as best...

Q: my car runs but wont rav

Hi there: The biggest problem that water damaged vehicles have is with the electronics; especially with the ECU. It's possible that the main ECU is damaged; which is why you're having issues with the engine; especially if it won't rev...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...