What oil should i use???

Im doing an oil change tomm (going with synthetic) and im not sure what oil to go with 5-30, 10-30... what?The car is a 92, has about 120,000 miles on it and i live in down south in florida so it tends to be hot all year around. Thanks.

5w-30. I assume that's what it says in your manual.

check the manual.
also it depends on your climate.
mobil 1 5w 30 is good.