Stabilizes crankcase oil and protects crankcase partsThis special formula uses the latest chemistry to stabilize stored oil while it coats the cylinder walls, connecting rods, crankshaft and other internal metal parts to protect against corrosion. Simply add it to your crankcase oil, run the engine for 10 minutes to let it circulate, then store. No need to change oil after storage until the normally scheduled maintenance. Meets military vehicle storage specs. 8oz. bottle treats five quarts of oil. 8oz. bottle treats five quarts of oil