life after 300k

Hi. how long can i drive my landcruiser v8 d4d. 2013. It has now driven 317000 km. Doesn't use oil, runs so well. injectors changed once at 238000 km. no leaks. changed the valve block to AHc control. changed the fan belts with tensioner and idlers. changed both intermediate shafts, didn't have...

My good partner of 27 years may have to go. My 1997 80 had 265K when a head gasket leak caught me by surprise. A used engine was swapped in, and all was well until a few weeks ago, when an engine knock started. It seems impossible to find people willing to open up an old engine on a...