Can you clean the evap core? May improve performance with proper air flow.

Get an All Data Subscription for you vehicle.

http://www.alldata.com/

System will need to be pulled into a vacuum before charging.

If you stay with R12. When the site glass on drier clears. Once you get close to 19 ounces add a little slowly until it clears.

It will be in the range of 19 to 22 ounces of R12.

A6 over the the S6 in my opinion.

R12 over any of the alternatives refrigerants.

Everyone is welcome here! Providing details makes for a more informative response from others.

Glad you found your answers and have a working system again. Will try and add some features this winter to help our posters with their questions.

System with rear air calls for a total of 11 ounces of oil.

I would say you're pretty close to max performance. You lose about 6 degrees from evap temp to vent temp.

See if the top and bottom lines coming out of the evap case are the same temp.

Santech.

http://www.ackits.com/mt1416-santech-r1 ... oses-24615