Oil, Water, Kropki: Another Fascinating Fusion of Parity and Kropki Dots

Today's Puzzle:

Continuing with Blobz' lovely series based on Oil and Water never mixing. The puzzle emphasises kropki dots for the solve for sure.

Link to Play Along:

Oil, Water, Kropki by Blobz http://tinyurl.com/SudokuSleuthOilWaterKropki

Rules:

Normal sudoku rules apply.

Black dots separate two digits where one is double the other. Not all such dots are shown.

Digits in cages do not repeat and must sum to the small clue, if given.

Each cage is either full of "oil" (even digits), full of "water" (odd digits), or a mix of both. In all cases, each "row" within a cage is of just one type (oil or water). Oil floats on water, so even digits will always be in rows above odd digits in mixed cages.