An oil filter reservoir includes a reservoir housing having a filter, which divides the housing into an oil inlet chamber and an oil outlet chamber. A housing inlet and a housing outlet circulate oil in and out of the reservoir housing. The filter includes a permeable wall and a bypass valve, which releases the increased oil pressure and volume in the inlet chamber during cold temperature operation. A baffle in the outlet chamber is spaced apart from the bypass valve and permits limited oil flow through the baffle. The baffle separates the outlet chamber into a reserve chamber and a bypass chamber.