I have owned a 1997 XJ6L for 20 years and am selling it. However, I just purchased a pristine 1997 XK8 with 20,000 miles. That many miles are great, except I am worried about the seals and other things that might go wrong since it has not been driven. Any suggestions would be beneficial. I could not find a mechanic in Albuquerque for my X300, so more than likely, I will be doing the work myself.

The only thing I noticed that might be concerning is that once you get near 80, there seems to be a humming noise from below the car. Since I had the six-cylinder, I might not just be used to the power and the growl of the V8. Again any suggestion would be great.

Thanks, guys, and I look forward to helping others resolve issues as they arise.

Phil

 

All you can do is check /change the fluids particularly the anti freeze and a proper flush.
New thermostat,aux belt. check transmission fluid but you should not need a filter at 20,000, worth changing the fuel filter too .
then just drive it and pray

 

Any history on the timing chain tensioners?
On a '97 that would be a concern, do a search on the problem, it's major.

 

ZF recommends Oil Change at 10 years.

From the 5HP 24 repair manual..............