@Nowaytk.
Your location and signature show on my desktop, thanks !
Sadly, the temperature indicator is no more than just that. It gives a temperature in the cooling system : the engine and oil are then still far from operating temperature. The bigger the engine, the more modern the engine, the longer it takes. Although our 'shopping trolley' , a BMW Tourer heats up in two kilometers and heats the interior.
I am sorry to hear about your TdV6. I had a D3 TdV6 for almost ten years. This was our only car in the beginning [ we bought it 4yrs old]. Since we had to take the kids to school [ 2km ], the engine didn't heat up. So I had a 'Defa' electrical heater installed. This heated the cooling liquid. There are models that use a bolt opening in the engine and heats the oil, more efficient. In winter I left this on 24/7 at a cost of € 1,20 per day, car always warm from start, never had to scrape ice from the windows.. :mrgreen:
Short trips and cold starts have been contributing to the death of your engine. These had a design flaw. As they sold far more then they ever estimated, they forgot to replace the moulds in time. So the 'nodge' on the cast block where the 'hole' in the semi circle section of the crank bearings slotted in, faded in the last thousands of engines. Then there was a problem with the thickness of these bearings. Car manufacturers use contractors to supply parts. So did Ford [ the engine originated from Ford ]. So there were tolerances in the thickness. But they mixed these batches. So it could happen that opposing halves of one bearing varied op to 0.2 mm in thickness, effectively bending the carnkshaft every half turn slightly. Also there was a mistake in the tooling ; a CNC bench that removed edges near the flanks of the excentric parts, undercut slightly forming a snapping point like you cut a scratch in a panel of glass. Evidently 90% of snapped krankshafts fit with others in detail. A man in South Africa spend loads of time investigating this [
https://www.4x4community.co.za/forum/showthread.php/248591-Preliminary-Investigation-into-TDV6-Crank-Failures ].
The result of some aspects put together [ for this engine ] is that at cold starts, this semi section gets a 'shove' when started since the crankshafts is resting metal-to- metal, worse if the car is used rarely, let say once every 5 days or less. Then, some people have the bad habbit of pushing the throttle at starting and revving up : not good at all. Sadly Jaguar made this the automatic starting procedure for all F-Type engines, why.... :roll:
Then, driving a short distance leaves the oil cold and it does not lubricate well, also water from condensation does not evaporate and builds up in the sump. Some people only observe the 'milage' for sevice intervals, though one year is the minimum on the TdV6.
Eventually such a 'shove' could be enough for a section of the bearing to shift over the 'nodge' and ends up wedged between the other bearing section and the crankshaft, extremely deforming the crankshaft every turn and in a few turns it snaps off..
Sadly JLR did not pro-actively pick up this problem. Sofar around 8% of all TdV6 ended this way. Sometimes at very low milage, sometimes at very high milages. The latter with engines well used and cared for, but the 'thin' section from a pair [from different producers] of crankshafts bearing shells was then worn out to a level it would vibrate in the bedding as it rocked when the load shifted from the thicker half to the thinner, so 'shimmied' the section to jump from the nodge that itself was in perfect order.
In Taiwan the authorities has decided that JLR has to replace all engines that end due to a failing crankshaft, no matter age or milage...
The man who bought my D3 lives in Luxembourg : he leaves it 24/7 on the electricity to keep the engine at working temperature . He lives in a hilly area and has to rev up the engine [ above 2200rpm when the turbo kicks in..] quite soon after leaving his home, a rather risky situation for these engines.
So, in order to let your V8 lead a happy life, let it run warm and do not 'give it beans' untill about ten minutes at least, after the indicater says it reached operating temperature. But that means driving , forget the time you halt at a traffic light. In summer it can well be you reach this in ten
minutes, in cold winter only after 15-20 minutes of driving.
Enjoy !