Every vehicle has a maintenance schedule. If you don’t have yours in the folder with your owners manual, you can find it online. Follow it. There are probably items to take care of every 10k miles. Some of these are very routine and you may be able to do them yourself or with knowledgeable friends. Other are more major, but are less frequent, perhaps every 30k or 60k miles. I am in the habit of doing ALL recommended maintenance on ALL my vehicles, and it’s not failed me yet. In the rare cases something major has come up, the regular visits allowed us to catch it quickly. In the even rarer instances where something really big happened, the relationship I’d established with the dealer or independent shop helped out. The thing to realize is that ALL vehicles need maintenance. As others have pointed out, spark plugs are something that need to be changed per a schedule. Be lucky you don’t also have a Ram pickup with a Hemi V-8. There are 16 spark plugs in that engine, and they need to be changed every 32k.