Regular antifreeze such as, green, or red!
antifreeze coming from back of intake on 1993 gmc sierra
green
in the radiator reservoir
Dex cool, they make some that you can use in either but GM is supposed to use the orange Dex cool
For 1993 GMC Sierra wiper installation and wiper blade info, see sources and related links below.
The 2008 GMC Sierra-2500HD has a 6-speed automatic.
The 2006 GMC Sierra-2500HD has a 5-speed manual.
The 2014 GMC Sierra-2500HD has a 6-speed automatic.
The 2012 GMC Sierra-2500HD has a 6-speed automatic.
The 2008 GMC Sierra-3500HD has a 6-speed automatic.
The 2007 GMC Sierra-3500HD has a 6-speed automatic.
The 2013 GMC Sierra-2500HD has a 6-speed automatic.