Related Photo Galleries
At high-rpm, about three quarts of oil are on top of the engine (out of the pan), and there is always close to a quart in the filter, leaving one more quart in the pan in a typical five-quart system (right). A vehicle used for high-performance (high-rpm operation) driving should have a larger oil pan. For most drag-racing use, a deep sump pan works well because it adds capacity without increasing the area around the bottom of the pan as a wide-sump pan will (left); the wide sump spreads the area out around the pickup and more oil is required to keep the pickup submerged. Granted, for many street and road race applications a wide sump pan is the best high-performance choice because of ground clearance and steering linkage issues.