A Core deposit is a form of deposit you pay until returning your old part. If you don't have the core at the time of purchase, you must pay the core charge. That charge is refunded to you when you return the core.
Lucas "Plus" Petroleum Oil has long been a preferred motor oil in the racing industry. The "Plus" is for the extra additives that are above and beyond those found in ordinary oils. Lucas developed this line of premium oil to meet the extreme demands of all racing applications. It can withstand the extreme temperatures and fuel contamination of high performance vehicles.
Lucas "Plus" Petroleum Oil can be used in everyday passenger cars and trucks, especially older engines where oil consumption is a problem.