What is up with our oil filters? Did my first oil change @ 40k, (dont worry bought the truck from a dealer with 36.5k on it oil looked brand new) and I am amazed at how small the oil filter is. Does anyone know why this thing is so small? I have a little 2.5 L 6 cylinder DD too and the filter is almost double the size! I was also surprised that it took 6.5 quarts of oil...