After the service, I took a look at the fluids in the car. There is a tank marked coolant with F and L marks on it, and the the level of fluid in this tank was (significantly) below the L mark - it looks like there are about two cups total at the very bottom.
This means that you can book a round-trip ticket to Hawaii from anywhere Delta flies in the US, Canada, Mexico, Puerto Rico, or US Virgin Islands using Korean Air miles for only 25,000 miles in coach or 45,000 miles in Business Class.
A typical flight from San Francisco to  Honolulu, for instance, is 5 hours and 20 minutes, and Los Angeles  flights generally run a little longer, in the 5 hour and 35 minute  range. All flights between the mainland and Hawaii are affected by  traffic, weather, and winds.They can run as short as 4 hours and  15 minutes to as long as 6 hours and 30 minutes.  Distance:   The distance between Los Angeles and Honolulu is 2551 miles  (4105 km). .ll flights between the mainland and Hawaii are affected by  traffic, weather, and winds. They can run as short as 4 hours and  15 minutes to as long as 6 hours and 30 minutes.  Distance:   The distance between Los Angeles and Honolulu is 2551 miles  (4105 km). .