Hi. I am changing the oil and filter for the first time and i have a question. the manual says to add 2.1 qts of oil to the oil tank and then start the machine and let it run for a few minutes and then check it again and add til the dipstick is on the F mark. why would you only add 2.1 qts if the manual says the total quantity is 4 qts? wouldnt it be bad to run the machine with only 2.1 qts if it is suppose to have 4qts? The oil tank is the only place that oil gets added correct? I know like on my atv you add oil to the oil tank and the motor thats why i ask. Can someone clear this up for me. sorry if this was a dumb question.