revd wrote:

lightning wrote:

Mine has done 15,000 miles of mainly short journeys. Although as l said, several short journeys every day so the engine stays hot.
lt does some longer journeys as well.

Anyhow, after reading about this engine failure l checked mine and it's like new inside with no deposits at all.

My old Defender TD5 had 90,000 miles of similar use. l had the cylinder head cover off a couple of times to change the injector harness and again, it was perfectly clean inside with no deposits at all. The oil was changed every 6,000 miles.

Head off or just the rocker cover?

Silb wrote:

Regarding disadvantages of Start/Stop two things come to my mind;
- Oil Pressure: It takes some time for the pump to build oil pressure when starting the engine, so through the additional starts the engine is running longer on low oil pressure.
- Additional stress on the timing chain (I guess it can be addressed through proper sizing of the chain and use of quality components, not really the case with the early Ingeniums )

Hello, with my little criteria I think 2 things about the use of the S / S,
1. - that the lack of pressure in the oil pump seems insignificant in an engine that has already been running and therefore has its lubrication ducts full, I have already said that the car when it is cold, at least mine, does not activate the S / S system.
2. - that the distribution chain does not have to make any additional over effort, it simply does its job which compensates for the moments when it is stopped thanks to the S / S system.

... and in any case you always have to value the moments in which the engine saves hours of operation and fuel ... I am not an immobilist in my life, I USE IT CONTINUOUSLY AND LET THE CAR MANAGE IT.  Defender 110 SE I6 D250 23MY
ExDiscovery 3 TDV6 SE