Quote:
Originally Posted by Gaz64
I thought the quoted pan capacity was meant to be the service fill volume to have the correct level AFTER changing the oil, otherwise how does one know what the service fill is? |
It actually doesn't make a difference on run-of-the-mill
oil changes because when you drain your
oil you are really only draining the sump. You don't drain your oil cooler, your oil filter, or the nooks and crannies that are holding oil, so those are, and should be, excluded from the sump volume number. In fact, the pan manufacturer has
no idea how much total oil is in your system because you might have a remote oil filter, with extra lines, an oil cooler, along with extra lines, and who knows what. But they do know that the sump should hold X quarts. Now, if you do like most of us and fill your filter up manually, then when you change your oil and filter you will add more than the total volume of your pan. So, when I do a "kind of service fill" I tend to add about 3/4's of a quart more than the sump volume of my Canton pan to hit the "FULL" mark because I am adding that directly to the filter. If I used my vacuum sucker to get all the oil, via a suction tube, from my cooler, then my "true service fill" would be, I'm guessing, about a quart more (I never suck the oil out of the cooler). But, regardless of what I do, after I start the car, run it a bit, and then let it rest, the volume that is in the sump should be the designated volume quantity that the manufacturer has listed regardless of whether I have filled the filter separately, or the oil cooler separately.