New (to us) DP Questions.

I have a 2007 Discovery which is very similar. You add oil in the same tube with the yellow cap that also contains the engine oil dipstick. Like another poster mentioned the dipsticks are not very accurate. When I fill mine to spec's called for By Cat it's near the add mark. I would change the oil (with the exact amount called for) and filter, start the engine to fill the filter, shut the engine down and wait a few minutes and check the oil and see where it registers on the dipstick. I it's off the marks I would mark the dipstick where the full line registered on the stick. I would stick with the 6 volt batteries as they will hold charge a lot longer than the 12volt. Just look for a deal on golf cart batteries like they sell at Costco or Sams. I would not trust the jack. Are they the electric powered jacks? They can be trouble some and there are updates for the electric jacks.;)