Let’s find out if Pennzoil’s motor oil (Pennzoil Synthetic Blend, Pennzoil Full Synthetic, Pennzoil Platinum and Pennzoil Ultra Platinum) are basically the same oil. All four oils tested were sent to an independent oil lab for oil analysis. Todd tested the oils for evaporative loss, lubricity or film strength, cold oil flow both new oil and after exposure to heat. Additionally, in a final test, Pennzoil Ultra Platinum is exposed to 10% gasoline and another sample is exposed to antifreeze to see the impact it has on lubricity or oil performance.
Keep in mind, Todd purchases all the products he tests and never accepts samples or sponsorships to ensure fair and unbiased test results. Consider supporting him at Patreon.