Here comes paranoia. Started Rangy yesterday, HMMM that's a bit smoky-pale blue. It's used the bit of water, no oil as usual. Looked like a bit of condensation in the oil filler cap, not mayo. After 40 odd miles filler cap dry, water ok, still hint of smoke, no overheat, no loss of power. Am I just losing it or do I investigate slipped liner/headgasket/valve stem oil seals?