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.
45,000 Miles Round-Trip for a Delta Business Class Flight to Hawaii Is an Amazing Deal! I called Korean Air to check if this pricing was correct and they confirmed that as long as award seats are available, itâs 25,000 miles round-trip in coach class and 45,000 miles in Business Class.