It does not contain any Freon.
Yes
Refrigerant is added through the low side service port.
Around $20-25
read sticker on A/c unit should be there Rick ASE L-1 MAster TransMichigan.com
Yes. You can put a hitch on a Dodge Neon.
With some major modifications anything is possible.
Put a small hose in the dipstick tube, and suction out excess fluid.
No, it will not interchange.
Yes
A 2001 Dodge Neon uses red, hoat type antifreeze.
yes
No, the years have to match.