#3737 has been sitting in the garage for about three weeks while we have been on vacation. It has 3/4 tank of gas and I will not return for another two weeks....should I have my father-in-law (with whom I entrusted my second set of keys) start the car and let it run for a minute or two in the next couple of days? I have heard that deposts can form in the gas tank. It has 89 miles on it, and it is the first tank of gas in the car. What should I do?