Nobody wants their oil to excel at just one thing, which is why Pennzoil Platinum® Full-Synthetic motor oil with PurePlus™ Technology is designed to give engines complete protection. PurePlus™ Technology is a revolutionary process that converts natural gas into a 99.5 percent pure base oil. Combining it with high-performance additives means Pennzoil Platinum® Full-Synthetic motor oil is proven to keep pistons up to 40 percent cleaner than the toughest industry standard, based on ILSAC GF-5. Additionally, Pennzoil Platinum® keeps pistons up to 8 percent cleaner than Mobil 1 and up to 17 percent cleaner than Valvoline® SynPower®.