Pennzoil Platinum Full Synthetic 5W-30 vs Mobil 1 Advanced Full Synthetic 5W-30

Both are top-tier 5W-30 full synthetics and either will protect a modern engine well. Pennzoil Platinum is made from natural gas base oil and is a strong pick for owners who want a clean-running oil at a fair value. Mobil 1 Advanced carries the longer drain claim and the wider builder approvals, so it suits people who stretch intervals or drive hard. Owners of both report clean engines and steady oil pressure; the real split is drain length and approvals, not basic protection.

• Choose the Pennzoil Platinum if you change oil on a normal schedule and want a gas-derived full synthetic with the Chrysler MS-6395 approval.
• Choose the Mobil 1 Advanced if you want the longest drain interval claim, broad GM and import approvals, and the most widely trusted name in synthetic oil.