If you can give me the dimensions of your sump where your plug is located, ( length and width of the sump and total length of the pan, I’ll calculate exactly how many ounces of oil is left behind if you used a ramp. I’m assuming you have a sump in the front part of your pan. Keep in mind that your pan probably has a small tilt from back to front into the sump. Do you have the 3.7 or the 5.3?I don't use ramps because the plug is at the front side of the pan. 2 on the filter may be the thing to do.