The change-over to 134a refrigerant happened in the early 90's - so this one is definitely 134a.
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For a 2002 Mercury Sable : ( 68.1 litres / 18.0 U.S. gallons )
typically the 1992 Mercury Sable can hold up to 16 gallons
In a 1994 Mercury Sable : " regular " unleaded gasoline , 87 octane
According to the 1998 Mercury Sable Owner Guide : ( 16.0 U.S. gallons )
According to the 2002 Mercury Sable Owner Guide : ( 18.0 U.S. gallons )
There are several reasons why a Mercury Sable may not start. Some of the reasons are no gas, a bad battery, or a bad starter.
According to the 2002 Mercury Sable Owner Guide : For all trim levels ( 18.0 U.S. gallons )
16.6 galons
For a 2002 Mercury Sable : " regular " unleaded gasoline , 87 octane For the 3.0 liter " Vulcan " and " Duratec " V6 engines
The ( 1997 ) Mercury Sable Owner Guide shows , for all models ( 60.6 liters / 16.0 U.S. gallons )
You can only get gas heating and air conditioning. The gas heating and air conditioning is less because it uses less gas then how much water you would be using. The electricity for the heater and AC can be fairly cheep.
" regular " unleaded , 87 octane