You want your oil to return back to the sump, not wander off to the nether regions of your engine block. Unfortunately, a worn out oil return tube seal can leave your 10W-30 free to roam wherever it wants. The only solution for a faulty oil return tube seal is a replacement, and the only source on the net to get both a 1-year lower-price guarantee and free shipping with your oil return tube seal is at AutoAnything. Best of all, each and every oil return tube seals on our site are built to meet or beat OEM specs.