Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_85 ( combined_consumption VARCHAR, code VARCHAR )

### Question ###
What is the combined consumption of the engine with the code k9k 796?

### Accurate SQL ###

SELECT combined_consumption FROM table_name_85 WHERE code = "k9k 796"