Having only recently bought the '14 Soul and reading that some owners have had problems with metal shavings in the motor, I sent an oil sample to be analyzed and the results showed no significant particles in this 3000 mile sample. Not a lot of milage but I wanted to get an initial report to establish condition of the motor. I had changed the oil/filter immediately after I got it, using Penn Plat synthetic and used the same for the last change. From now on I plan on changing every 5000 miles. During that short run of 3K miles it did not require any oil to be added.