What it really costs to own, insure and maintain a car
Ahmed Siradj 
A brake fluid flush costs $90–$200 at most shops, $150–$300 at dealers. Here is what you are paying for, how often it is actually needed, the signs your fluid is due, and when a shop is upselling you.
There is no magic number. What matters is miles per year, the brand, and the service history. Here is how to judge mileage on any used car — with a table by age and the price discount high mileage should earn you.
The questions that reveal a car’s real history before you waste a trip — what to ask by message, what to ask in person, and the answers that should make you walk away.
Gap insurance costs $20–$60 a year from your auto insurer or $400–$900 as a one-time dealer add-on. Here is what you actually pay, who needs it, and how to buy it for less.
Gap insurance only pays in a total loss or theft — and even then, late payments, rolled-in negative equity, deductibles and extended warranties are often excluded. Here are the nine situations where gap pays nothing or far less than you expect.
A car AC recharge costs $150–$300, a leak repair $250–$900, and a compressor replacement $900–$2,500. Here is what each AC problem costs, how to tell which one you have, and how to avoid paying for the wrong fix.