Leptin is produced primarily in the adipocytes of white adipose tissue. It also is produced by brown adipose tissue, placenta (syncytiotrophoblasts), ovaries, skeletal muscle, stomach (the lower part of the fundic glands), mammary epithelial cells, bone marrow, gastric chief cells and P/D1 cells.
The fuel filter, in a 2008 Ford fusion, is located inside of the fuel tank. Drain the fuel from the fuel tank. Remove the fuel filter plate. The fuel filter will slide out. Reverse the process to install the new fuel filter. The fuel filter, in a 2008 Ford fusion, is located inside of the fuel tank. Drain the fuel from the fuel tank.
Re: Water separating fuel filter for a 115 ETEC. The #174176 Evinrude fuel-water separator kit provides the filtering and capacity that your motor requires and is the recommended choice. The V4 and V6 E-TEC engines already have a 10 micron filter on the engine to catch anything that might get past the boat filter.