I have 3 days worth in the car. Much more in the house. Seems to me that the Dept of Homeland Security wants us to have "just enough" to get by until they can come rescue us, but they don't want us to have "too much" because in order to exercise power they need us to be dependent upon them. If we don't need them to provide for us then we have the power.keep three days of food and water for survival the Homeland security suggest this for all americans
3 days worth in both bug out bags (one in each car). With three kids though, that amounts to less than I would like but space is an issue. At home, we are at about a month and a half's worth and growing (that is the same as nearly 6 months for you single guys). Having a wife and three kids makes this more of a logistics nightmare.
Water storage is the real game. Watertank, yes. Toilet retention tank, yes. If quick on the emergency - cold water into the tubs and then into every container you have, yes. But storing water long term without problems is tricky.
I am aiming for 6 months for the family (that's 2.5 years for the single guys) and wife is on board (thank God for her close Mormon friend). We plan to add dry foods, but again, water is the trick. If you do not have potable water all that dried food is useless...
In any event, we are getting there.
MRE's are way to Temp sensitive for storage in a car.
For the car kit, Mainstay, or ER type ration bars would be a better choice.
Emergency Food Rations