Had my XJ in to take care of finding and rectifying a recurring (as in, it was fine, but after my tranny replacement...) whiff of hot oil smell when turning off the car...and found and have rectified a few things:

1. The hot oil smell was coming from an observably tight but weeping fitting on the tranny oil cooler line. Ross (my indie mechanic @ Jaguar Specialists in Fallsington PA) took apart, cleaned mating surfaces, reassembled, tightened down again...took for ride to warm up tranny, checked and adjusted lube level (it was fine, but he checked it in any case..easy to do if you have a lift).

2. Lube, oil, filter change. Put 3500 miles on her since the last change, time to flush out the old stuff, in with the new. Car sat for a little over a year, so, figure more frequent changes for the first couple is probably a Good Thing as the engine gets used more often.

3. Ross noticed that there was a faint smell of gas in the engine compartment. So...took off the plastic covers...and the fuel rail cup for injector 1 was weeping where the cup joined the rail. As it turns out, the cup that fits over the top of the injector to feed the injector is just swedged onto the rail; it's not welded/braised, so, after a while, rust/exposure/vibration can weaken the crimp.

So...the Jag part, new, with the pressure regulator, is a Lot Of Money. But, breaker yard parts aren't necessarily. So...found a used part out of a local yard, examined all the joints and condition, cleaned it up, flushed out, pressure tested it, and installed it.

But, in removing the old rails...it jogged the o-ring seals on a few of the injectors. ECU threw a couple 'lean' codes, and the idle was a bit off, which was confirmed by use of a propane leak joint checker. Was hoping to get away without having to re-o-ring all the injectors, but, if one or two was going bad on a 13-year-old engine, it probably made sense to do all of them while in there. I'm normally not of the opinion that if one or two is bad to do 8 of them, but, in this case, with flexible seals located in hot engine areas, better to do them now than have to go back in at a later date to do them piecemeal.

So...ordered a new set of o-rings...and installing them on all cylinders.

(And he has a beautiful '00 XK that skipped a tooth on the right chain and is in the middle of doing the chain upgrade, do the thermostat and housing, and get running again...got me thinking...)

Shoot me now...

So, the saga continues. The next owner will have a nice stack of upgrades on this one, that's for sure.