1993 Ford Thunderbird tires are generally 15 inches.
The 1990 Ford Thunderbird was developed on Ford's Mid-Size North American Project 12 platform. This Thunderbird featured a more aerodynamic body that was shorter in overall length in comparison to the earlier Thunderbird, but with a longer wheelbase.
On a 1997 Ford Thunderbird ( V6 and V8 ) 68.1 liters ( 18.0 U.S. gallons )
The ( 1996 ) Ford Thunderbird Owner Guide shows ( 68.1 liters / 18.0 U.S. gallons )
Standard tyre size for 1994 Ford Thunderbird LX 4.6L V-8 automatic is 205/70R15
I just checked the owners manual and mine has an 18 gallon tank. 1992 Ford Thunderbird 3.8 liter.
For a 1993 Ford Thunderbird , 5.0 liter / 302 cubic inch V8 : ( BCI group size 65 , 650 to 850 cold cranking amps )
6x8's front and back