yes,it will not hurt it
Yes, 10w30 can be safely used in that engine. The only thing you will want to watch is when it gets colder, like below freezing, if that happens in your area. However, there is no real benefit to running 10w30 instead of 5w30. The only difference between the oils is the 5w30 flows a little better at cold temperatures than the 10w30. When the oils get up to operating temperature they are practically the same viscosity.
10w30
either 5w30 or 10w30 will work well.
10w30 motor oil should work nice
No it is not. The correct weight oil for your car is SAE 5w30.
If the recommended oil is SAE30 why would you use SAE 10W30? Some mowers recommend either of these weights but if your recommends 30W then using 10W30 will cause it to use oil.
SAE 10w30 any major brand.
Yes you can.
10w30 any major brand. I recommend you use an AC/Delco, Purolator, Wix, or Bosch filter.
Use exactly what the manufacture of your vehicle recommends and nothing else. To do otherwise is foolish.
the car should be happy with either. Go ahead and use whatever your local oil change places are using.
10W30. I would suggest Castrol GTX oil. Should take 4.5qts including oil filter