The 1996 Suburban uses r134 Freon. The fittings to add Freon are different sizes on r12 and r134, making it impossible to add the wrong type to your vehicle.
R134a
R-134a
r12
The listed 1996 GMC suburban K 1500 towing capacity is 7500 pounds. Towing more than 7500 pounds will void the warranty.
Depends on ambient temperature need a chart
my 97 gmc suburban k2500 454 takes 7 qts of oil during oil change.
It's inside the fuel tank.
5 qts with a new filter.
Get under the driver side of the suburban by the driver door and their should be a linkage that you can loosen
195 to 210 degrees is normal.
13.9 to 14.3 VOLTS with engine running.
R134a.