Punch in and sign in on the Manager Station terminal
Click on the ARM/PREPAID tab
Click the purple "Gas Station" button
Add each wash they are buying one by one to the sale:
THEY MUST BUY A MINIMUM OF 50 MIXED WASHES
FOLLOW THE FLEET PRICING GRID AT THE BOTTOM TO CALCULATE PRICES
At the end, select "Gas wash price" and enter the amount you are charging them. You will need to do math manually.
Example, the gas station buys 13 basic, 13 good, 13 ultimate, and 13 ultimate no ts:
(13 * 7) + (13 * 12) + (26 * 14) = $611
The gas station will resell these to their customers for:
Ultimate/noTS $17 ($3 profit)