The word that connects them all is "baby," as in baby oil, a baby rattle, and baby eyes.
snake
The word "snake". Snake oil, rattlesnake and snake eyes.
Baby
Examples of compound words with 'oil' are:oil welloil tankoil clothoil canoil paintoil platformoil rigoil slickcooking oilolive oilsuntan oilcanola oilpeanut oilbaby oilhair oil
compound
The oil pump rattling is very unlikely, a bad pump causing other components to rattle and damage themselves is VERYlikely.
so will the wrong oil filter
vegetable oil, is a compound because it forms a liquid.
what to do when oil in eyes
compound
Oh, dude, that's easy! The word you're looking for is "septic tank." It's like this big ol' tank that holds all the, uh, lovely stuff from your, uh, plumbing system. So yeah, septic tank is the word you're searching for.