Eliminates Cold Start Scuffing. Before the engine is shut down, the driver must turn the pre-oiling valve to the Off position to retain the pressurized oil charge until the next start-up. Before starting a cold engine, the driver opens the valve and the pressurized oil in the Accumulator pre-oils the engine and prevents cold start scuffing, dramatically increasingthe life of cylinder walls, piston rings, and bearings. Maximum performance levels can be maintained for a longer period without expensive, time-consuming engine teardowns. Using the Accumulator saves you time and money. Moroso Oil Accumulators provide an instantaneous supply of oil when pressure falls below a safe level. Our professional-series Accumulator, designed for all-out competition, is now available with a 3- or 1. 5-quart capacity. The new 1. 5-quart version is perfect for Sport Compacts and other vehicles with 4 and 6-cylinder engines. Moroso's Accumulator 2 (Part #MOR23930) is intended for street performance and mild off-road applications, and features a 1. 5 quart capacity. All Accumulators store oil under pressure and automatically release that oil to the main galleries when oil pressure drops. Moroso Accumulators can also be used to manually to pre-lube engines before starting to prevent cold-start scuffing and premature bearing wear.Pit Stop USA offers Moroso 1.5 Quart Oil Accumulator - Accumulator - 10" x 4-1/4" - Replacement Parts: O-Rings - Four Per Package: #MOR97530 23901 at low everyday prices. Be sure to check out all of our products from Moroso Performance Products including Moroso Performance Products Oil Accumulators.