I was poring over the pdf sheets on Pennzoil YB, Pennzoil Gold and Pennzoil HM and I noticed something. I think they are all the same oil with varying ad packs. Check it out. All the basics are identical. Tried to link the conventional but you have to download it in pdf not a straight link. Makes sense right.. to meet spec most conventional oils likely are a blend now. put HM ad pack in the HM oil put blend on the GOLD and decide on what you want to pay for Dexos approval and what not to. any way just a thought.
http://theoilnet.com/Atlantic-States-Lubricants/pdf/Vehicle-Lubricants/Pennzoil-HMV.pdf
http://theoilnet.com/Atlantic-States-Lubricants/pdf/Vehicle-Lubricants/Pennzoil-Gold.pdf
http://theoilnet.com/Atlantic-States-Lubricants/pdf/Vehicle-Lubricants/Pennzoil-HMV.pdf
http://theoilnet.com/Atlantic-States-Lubricants/pdf/Vehicle-Lubricants/Pennzoil-Gold.pdf