At most major retailers, purchase any Pennzoil Ultra Platinum Full Synthetic Motor Oil, Pennzoil Platinum Full Synthetic Motor Oil, or Pennzoil Platinum High Mileage Full Synthetic Motor Oil and take $2 off for each quart you buy via this $2-per-quart mail-in rebate. (This rebate has a maximum value of $48 per person.) That's tied with our mention from July and a strong savings on synthetic motor oil. Some exclusions apply. Rebate ends December 31.