This is why we go in & up front order a vehicle NOT on the lot. It is made to our specs & we don't negotiate. We tell them This is whst we want. This is what we will pay". That's it. Have you looked into Carvana?

Oil,is the lifeblood of the engine,some people change at 5000 miles,I don't,preferring 3000 miles,the old saying "Oil is cheap,engines not so much" comes to mind. I like the Dino oil vs the synthetics,maybe on a new engine get it broke in and then switch might make sense.

Run maximum tire pressure for the highest mileage,clean air filter,fresh sparkplugs and an occasional walk around looking for something loose,pay attention if the Mrs. says "It's making a funny sound" they are never funny,usually $$$$.

Two types of modern engines; Interferrence and non interference, interferrence means if a timing belt breaks the valves and pistons will collide,ruining the engine,non interference does not have parts hitting.