So I heard that putting the wrong type antifreeze can potentially damage your car... I have a 1991 Accord, but the owners manual and service manual and all the good stuff was missing. I'm wondering what type of antifreeze or brand I would have to buy for my car.

This is my first car and its as old as I am!

 

Depends on your climate. usually 50/50 is all you need. unless you live in alaska or antarctica or some very cold environment then you should be fine with the 50/50

 

You want to avoid mixing different color of antifreeze.

If your car has the normal green antifreeze, use a 50:50 mix of any generic antifreeze and water.