No, you cannot put R-134a into a HFO-1234yf system; here’s why…
April 26, 2016
We have received some questions about putting R-134a into HFO-1234yf system and here’s why you should not do that from EPA. From the 2015 EPA SNAP Final Rule: For vehicles...Read Article >
R-1234yf and other trends
April 20, 2016
By Elvis L. Hoffpauir, MACS President and Chief Operating Officer There’s no one better to talk to members of the service industry about R-1234yf than the folks at Fiat Chrysler...Read Article >
HFO-1234yf : Specific safety procedures
March 24, 2016
Many technicians have questions regarding the new refrigerant HFO-1234yf. The best way to answer your questions is to take the Section 609 certification test using the new program updated...Read Article >
Mercedes-Benz to equip first vehicle models with CO2 A/C systems
March 18, 2016
By Steve Schaeber, MACS Technical Editor In order to comply with the legal provisions going into effect in 2017, Mercedes-Benz will equip its vehicles with air conditioning systems that meet...Read Article >
Watching R-1234yf
March 16, 2016
By Steve Schaeber MACS Manager of Service Training Many of the service shops and technicians we talk to about vehicles using refrigerant 1234yf are only just starting to get requests...Read Article >
EPA issues Notice of Proposed Rulemaking on small cans
March 4, 2016
By Steve Schaeber, MACS Technical Editor On November 9, 2015, EPA published a proposed rule to amend section 608 of the Clean Air Act pertaining to refrigerant management program regulations....Read Article >
Is your auto repair shop service ready? Find out…
February 29, 2016
Download the March 2016 Issue of ACTION magazineRead Article >
Rotten heater clamps
February 8, 2016
By Steve Schaeber, MACS Technical Editor Owners of 1998-2002 Ford U Platform SUVs (Sport Utility Vehicles, such as the Lincoln Navigator / Ford Expedition) may notice coolant leaking from around...Read Article >
The fine print
October 14, 2015
By: Elvis Hoffpauir On July 2, 2015, the final rule Protection of Stratospheric Ozone: Change of Listing Status for Certain Substitutes under the Significant New Alternatives Policy Program http://www.epa.gov/ozone/snap/regulations.html was...Read Article >
A/C use and fuel efficiency, A MACS whitepaper
July 13, 2015
Does using your A/C system cause you to burn more fuel? MACS attempts to answer that question in the attached whitepaper. Free download. If you’re a service professional...Read Article >
EPA issues final rule prohibiting certain high-GWP HFCs as alternatives under SNAP
July 6, 2015
On July 2, 2015, the final rule Protection of Stratospheric Ozone: Change of Listing Status for Certain Substitutes under the Significant New Alternatives Policy Program was signed by EPA Administrator...Read Article >
The high voltage A/C oil cross contamination issue
June 25, 2015
What you can do to provide safe service with an existing SAE J2788 machine If you work on air conditioning, you’ve hopefully heard about the issues regarding high voltage compressors...Read Article >