No it is not universal think of all those beater cars you see on the road they don’t need the precision as a 300+ hp car. Just keep adding oil. Also people do t

No it is not universal think of all those beater cars you see on the road they don’t need the precision as a 300+ hp car. Just keep adding oil. Also people do things like valve adjustments because they can be out by a certain factor and still run just with decreased performance. Obviously you can have certain aspects of an engine that will later prove to be fatal but there are lots of engines that run like crap and get people from A to B just fine. I am not saying some precision isn’t needed but for a lot of applications it is somewhat forgiving.