This may be a completely stupid question about car engines but hear me out. If I buy a brand new car, the engine is mint and purrs wonderfully and then after a few ten thousand miles it starts to sound a bit gruffer a bit less responsive etc. so my question is what is it that is wearing out in the engine and would it not be possible to replace those parts?
I drive a honda that I bought second hand a few years ago and now it's like 70k on the clock and it drives nicely but I'm sure brand new the acceleration would have been that much sharper, the braking would be tighter, the engine sound would be a bit more grrr and a bit less 'gurgle'. So what is the difference between a brand new engine and one that's done 100k - apart from the dirt and grime?
Oh and seperate to that, does anyone know any good websites that tell you how long a Honda Vtec 2.0i petrol engine can last if well maintained?
Cheers! Z