How do you get the Batman car in GTA 5 offline?

I’ve heard you’re supposed to use a heavier grade of engine oil during the summertime since oil can apparently thin out in high temperatures. What kind of engine oil is best to use in the summer?

I’m in the market for a new car, but I need to finance one. I’ve read about both open-end and closed-end credit, and I think I get the difference. But what is an open car loan?

My wife and I are looking at homes, and we found a great one with a two-car garage. We were hoping for some storage space along with our two cars, but we aren’t sure it’s big enough. What’s the standard square footage for a 2-car garage?