May 2018

The No.1 magazine for automotive information MAY 2018 www. a f t e r m a r k e t o n l i n e . n e t INSIDE Testing what you can’t see P20 John Batten shows how you can prepare for ongoing diagnostic success by being ready for every eventuality Ring Automotive on HID bulbs P32 Ring give the lowdown on HID bulbs. They might be misunderstood, but they are a real profit opportunity National Refrigerants P48 Air conditioning has changed and National Refrigerants has the story on R-1234yf, the next generation refrigerant REGISTER FREE NOW FOR AUTOMECHANIKA BIRMINGHAM 5-7 JUNE 2018 NEC, SEE PAGE 36 F 1 RST FOR BRAKING PERFORMANCE AVAILABLE EXCLUSIVELY FROM Pagid is a trademark of TMDFriction