I had
- a Haflinger scissor jack & bar
a couple of spark plugs
a plug spanner
a litre of engine oil
a tool roll with a few old tools (pliers / screwdriver / spanners / hammer etc)
[All of this is in addition to the bottle of fuel additive, a home made wooden fuel tank dipstick, a couple of dip stick wipes, & spare bulbs when going abroad]