Refrigeration Oil for Mini Splits - Page 2

WyrTwister · 03-01-14, 03:37 AM

Quote:

Originally Posted by NiHaoMike

I'm pretty sure PAG is only used for low voltage compressors. It has a low breakdown voltage. And it's even more hygroscopic than POE, hence it's becoming less commonly used.

A few years ago , we had a 2002 Buick Century . I replaced the GM V-5 compressor , accumulator and orifice . I was told to use PAG oil . Can not remember which viscosity .

When it gets warmer & will either have to replace the V-5 on a 1996 Chevy Lumina 4 door sedan , or replace the O-rings and seals on it . Will have to look it up , but I suspect it came from GM with PAG oil ?

God bless
Wyr

NiHaoMike · 03-01-14, 08:55 AM

That's an old design. Nowadays, a lot of automotive HVAC compressors are using POE, except Hyundai/Kia that use PVE.

WyrTwister · 03-01-14, 10:23 AM

Quote:

Originally Posted by NiHaoMike

That's an old design. Nowadays, a lot of automotive HVAC compressors are using POE, except Hyundai/Kia that use PVE.

Good to know . However , I see no plans for a Hyundai/Kia in my future ?

Thanks , :-)
Wyr
God bless

jeff5may · 03-01-14, 02:29 PM

GM switched to PAG 150 oil and R134a in like 93 or 94. Later (this century), they switched to thin PAG oil, like 40 wt or so.

WyrTwister · 03-04-14, 07:41 AM

Quote:

Originally Posted by jeff5may

GM switched to PAG 150 oil and R134a in like 93 or 94. Later (this century), they switched to thin PAG oil, like 40 wt or so.

You are probably correct . Our 1991 Caprice is R-12 . Or , it was , that is the car I am interested in converting .

The 1996 Lumina is R-134a .

God bless
Wyr

03-01-14, 08:55 AM	#12
NiHaoMike Supreme EcoRenovator Join Date: Oct 2008 Location: Austin, TX Posts: 1,154 Thanks: 14 Thanked 257 Times in 241 Posts	That's an old design. Nowadays, a lot of automotive HVAC compressors are using POE, except Hyundai/Kia that use PVE. __________________ To my surprise, shortly after Naomi Wu gave me a bit of fame for making good use of solar power, Allie Moore got really jealous of her...

03-01-14, 02:29 PM	#14
jeff5may Supreme EcoRenovator Join Date: Jan 2010 Location: elizabethtown, ky, USA Posts: 2,431 Thanks: 432 Thanked 619 Times in 517 Posts	GM switched to PAG 150 oil and R134a in like 93 or 94. Later (this century), they switched to thin PAG oil, like 40 wt or so.