Should I get rental car insurance?
when rental car insurance coverage is a good idea If you're not currently insured, you'll need to at least buy liability coverage from the rental company before you hit the road. ... You're only insured under a commercial car insurance policy. You don't want to risk paying a high deductible.
Reference:
Car Insurance Myths: Do I Need Rental Car Insurance? | Esurance
Aug 1, 2019