I use R- 1 3 4 a Synthetic AC fluid, I got it from Autozone $26.00
come with gauge too, make sure to point arrow on the gauge to the outside temperature before you start.
The 2008 Mazda MX-5-Miata has double overhead cam (DOHC).
The 2005 Mazda MX-5-Miata has double overhead cam (DOHC).
The 2004 Mazda MX-5-Miata has double overhead cam (DOHC).
The 2006 Mazda MX-5-Miata has double overhead cam (DOHC).
The 2010 Mazda MX-5-Miata has double overhead cam (DOHC).
The 2007 Mazda MX-5-Miata has double overhead cam (DOHC).
The 2012 Mazda MX-5-Miata has double overhead cam (DOHC).
The 2002 Mazda MX-5-Miata has double overhead cam (DOHC).
The 2013 Mazda MX-5-Miata has double overhead cam (DOHC).
The 2011 Mazda MX-5-Miata has double overhead cam (DOHC).
The 2003 Mazda MX-5-Miata has double overhead cam (DOHC).
The 2014 Mazda MX-5-Miata has double overhead cam (DOHC).