If you have a trustworthy auto mechanic, you are blessed, because he is the guy who has to be on point whenever you have a serious car situation. What you need to do is find a car repair shop to get your oil changed at, so the mechanics there will get to know you, and know a little about your car. If they are located near where you live that is an added benefit.
The reason that it is important to find someone as close as possible is that there will come a time when you will need to have a tow to the repair shop from your house. An example is when you walk out to your car in the morning, and your car won’t start, it won’t even turn over. You look up at the dome light and it is on, so you know that the battery is not the problem. It is probably the starter. You need to have your car towed to the shop.
Most independent repair shops are family owned businesses, and they need repeat customers, and that is you. If you are satisfied with their work, you will be going back to them for life. They know that, so they will do their best to do a good job and not take you to the cleaners from the standpoint of price. You just need someone that you can trust, and in most cases that is going to be your family owned, neighborhood auto mechanic.
Most mechanics who are in business today are up to speed on all of the newer cars and their computerized technology. Brakes are still brakes and so are transmissions, but the rest of the parts are pretty well known among the modern mechanics, and you should be in good hands with a local mechanic that you know & trust.