WHAT DOES JDM MITSUBISHI OUTLANDER 4B12 ENGINE FOR SALE MEAN?

My issue is, So how exactly does Pennzoil stack up with regards to top quality? Iv been operating 10W-30W semi-synthetic for any number of years now and havnt had any issues but would love to understand what you men Believe. I could swap to Royal Purple since its simply available below but wouldn't it be an enhancement?The customer care from Northw