Orange fluid??? Regular gas???

[Duquema]

. I have a 2017 seadoo spark never used. We only turn it on once a month. Now I've noticed that this orange fluid is running really low. Do you by some chance know what it may be? Also do you have to add anything in particular to the gas?
Thank you so much!

 

[POPPS]

The orange fluid is your antifreeze,,,to find the leak just fill it up and use an auto pressure tester,,,add NOTHING to the gas

 

[Duquema]

The orange fluid is your antifreeze,,,to find the leak just fill it up and use an auto pressure tester,,,add NOTHING to the gas

Thank you so much! I lost the manual and all these years we've had if but never used it just turned it on. It has less than 100 minutes.