I live in San Francisco and I'm taking my 1999 Honda Civic for a Los Angeles trip. Is this a good idea?

I've taken my car to La twice and no problems whatsoever! My car hasn't had any serious problems. The only thing wrong that mechanics have noticed was a tiny crack on my alternator belt. But it has never caused any problems. My parents are trying to convince me not to take it since it's old and some other things about the mileage. I'm getting an oil change soon and I'm going to put air into my tired before the trip. Will I be ok taking my 1999 Honda Civic again for a 7 hour drive? If so, any tips?

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