Lately I have been buying the big 5 quarts of oil cause it is cheaper and using an empty quart container to measure the last 1/2 quart (buying and using a whole 5q jug and I have another 5q jug that I use to get additonal 1/2q from each time. I keep these under an outside covered porch 9with top on of course) and the last oil change it looked like the 1 quart container with 1/2q of oil I poured in looked a little watery.......could water be condensating or somehow getting in there or am I being paranoid????? if water could be getting in.......I know the 5q was fresh and unopened so it would only be in the other 1/2 quart...should I rechange oil???

 

if its not too watery it will be ok, all it does is heat up and turn into steam, if you were to take off your oil fill cap after a long drive most of the steam will escape.

 

Actually, the oil could turn creamy, like what happens when you have a leaky head gasket. Its a terrible mess to clean out of your motor.

 

I would say change it....20$ oil change>1000$ motor