Your engine will seize and you'll have to buy a new car
depend on the year of the car. most would take 5w20. new models ask for 0w20
5w20
5W20
Very bad.
Not recommended. The engines call for 5w30 or 5w20.Not recommended. The engines call for 5w30 or 5w20.
5w20
5W20
I don't think I would go with 5w20. I'd probably go with 5w30 and you'll be alright.
5w205w20
Honda specifies 5W20. I'd personally put 5W30 in it. They specify the thinner oil in order to comply with government regulations. But in reality, if you drive your car in temperatures over about 10degrees celsius (50 fahrenheit) then the 5W20 won't cut it. Use 5W30 if you want your engine to live a long time. On the flip side, if your warranty isn't over yet, I'd stick with 5W20. Just incase something goes wrong and Honda needs proof of oil changes.
She needs to contact the lender and make sure the payments are made. If not they will repossess the car and she will be responsible for the loan balance after they sell the car. She also needs to contact a lawyer and see what her rights are in her state.