Consider Pennzoil...probably the most widely available-most widely recognized automotive engine oil in N. America. How much did a quart sell for when crude was $30 a barrel, or $40...or $50? Keeping in mind that 1985 dollars are not the same as 2005 dollars, I get the impression that changes in motor oil prices at the retail level for regular dino oil have not been significantly impacted by the rise in crude prices. Am I wrong? Is any data available on this subject that would track the retail price of dino oil? Also, it seems illogical that some products can occasionally be heavily discounted, unless of course the normal everyday price is a complete rip-off.