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_20 ( laps INTEGER, driver VARCHAR, time_retired VARCHAR, grid VARCHAR )

### Question ###
What's the least amount of laps that George Eaton completed that has a time/retired engine and a grid larger than 8?

### Accurate SQL ###

SELECT MIN(laps) FROM table_name_20 WHERE time_retired = "engine" AND grid > 8 AND driver = "george eaton"