Heat exchanger pressure adjustable baffle

An automotive heat exchanger comprising:

• a plurality of tubes through which flows a heat exchange medium,
• at least two tank portions which connect a multiplicity of the tubes and through which the heat exchange medium flows in and out;
• a self-adjusting partition baffle for dividing one of the tank portions into a plurality of independent tank chambers;
• wherein the self-adjusting partition baffle is resiliently attached to the one of the tank portions.

An oil cooler for a vehicle, comprising:

• a first end tank divided into a first portion and a second portion by an adjustable baffle;
• an inlet of the tank at the first portion;
• an outlet of the tank at the second portion,
• a plurality of a first tubes in fluid communication with the first portion of the first end tank, the plurality of first tubes configured to have a fluid flow there-through to a second end tank;
• a plurality of second tubes in fluid communication with the second end tank and the second portion of the first end tank;
• wherein the first end tank has a first end and a second end, a spring extends from one end and attached to the adjustable baffle and alters the number of the first tubes in fluid communication with the first portion of the first end tank and the second end tank.