Wally, making water is a problem for any container that experences temp changes. That's why aircraft fuel tanks are checked for water, but engines make water too. Running a 195 degree stat will speed the boil off process. But three miles just isn't enough time to get that job done.
A Harvard (Harvard Corp. of Evansville, Wis.) oil filter will trap water. This is an add-on, by-pass type engine oil filter. The Harvard filter will fill with water/coolant and have to be changed more often than if you drove it far enough to cook off the water. But better the water is in the filter where you can remove it than stay in the engine forever till the next service.
You could check for water next oil change you by loosening the drain plug when the engine is at room tempature. Any water/coolant should be on the bottom and seep out after setting inoperative for a few days. But it will probably take a lot of water for this to happen.
Or warm the engine as normal and take a sample durning the drain for analysis. This would tell you how much water/coolant you are dealing with. An oil sample is 10/15 bucks. Regular sampling, over time, can tell you a lot about the health of your engine. The lab will send you the results via fax, email or snail mail. Mike
