what is my blue book value on 1990 honda 4d?
not blue book, but you can check www.nada.com
If it's in fair shape and runs well...about $2,500 to $3,500...according to Edmunds.com Now the site Tom mentions, is a reputable source of information also.
There is some body rust, motor is in good condition, new tires replaced march 2016.
Looking for a Used Civic in your area?
CarGurus has 69,483 nationwide Civic listings starting at $1,200.
Search Honda Civic Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Honda Civic Experts