Buongiorno from Texas, Renzo. Thank you for the message...grazie mille! Your truck is very pretty. I think you want the IAT type anti-freeze (the green color...maybe blue) which is made for older vehicles. Maybe like this one:

https://proquisur.com/gb/anticongelantes/273-anticongelante-refrigerante-iat-50-pro.html

Please be careful not to use the solution made for aluminum radiators. Just drain out the old fluid, dispose of it correctly and then put in the new fluid mixed with water (usually 50/50).

I hope this is helpful...ciao!


~ Jon
1952 1/2 ton with 1959 235 | T5 with 3.07 rear end