I believe everyone is entitled and should do what they can afford to use on their vehicles. Side buy side comparison, less wear and tear on your engine is the most important for the sake of longevity. Tests have shown that, when compared side by side, there’s literally zero wear on your engine when compared to Full Synthetics. “Full Synthetic” is a marketing gimmick. A 100% Synthetic motor oil “will” do better at protecting your engine from it taking much longer to break down. Additional, additives play a key roll in keeping your engine clean. Pennzoil “ULTRA” Platinum is a very good Oil due to its additives. It’s still not 100% and when you compare prices, Amsoil at $10 per quart, Amsoil, IMHO, is the best bang for your buck. Another thing I love about Amsoil is that they keep a purchase log for you. I always order 10 for free $100 or more shipping and it’s delivered right to your door. Buy the best you can afford but don’t be a sucker for marketing gimmicks! Sent from my iPhone using Tapatalk