Most reliable and longest life are two different things. By most measures, Ford inline 6 "300" is considered the most "legendary" engine. Great history there and reasons for success. Maybe the best four cylinder - "Offenhauser" is another great lesson in engines, but even those engines were...
There is no replacement for displacement. Remember when Ford replaced the 7.3 L diesel with a 6.0L, then a 6.4L, then a 6.7L. Looks like 2027 will produce a new engine between 7.3 and 8.0 L. A big deal is the number engine revolutions to produce the power since that is a big factor in...
Good luck with a Range Rover. ALL vehicles have some issue, it is just a matter of how you deal with it. A Range Rover blown engine sure pushed me to Bronco, and I have not looked back!