Originally Posted by SmutWanter

Another problem I used to have with my car starting was a simple one. I had a minor oil leak that caused my oil to be low every couple of months and the same problem that you have had with it cranking and not starting occured.

In terms of you thinking the battery dies in a matter of days, then maybe your alternator isn't doing the job of recharging the battery like it should do.

Starting problems like these are always toughest to fix, because anything as little as oil being low, to cold temps., spark plugs or wires, to bad alternators, etc. can cause a car not to start and provide the proper power, and sometimes these problems can't be pinpointed until the car really breaks down unfortunately.