I agree that non synthetic cannot last as long from what I have read. I should have been more clear in my post, comparing other synthetic oils to one another with same specs, cheap vs expensive.
Reviews I am often skeptical cause of powerful lobbyists, the bigger the company the more influence.
I pulled this from Blackstone Labs and find it interesting, confirming what I am thinking at this point.
Spotlight on... by Jim Stark No matter who you are or what your oil analysis needs are, you have undoubtedly faced the question on everyone’s mind these days: What brand of oil should I use? Many people have very strong loyalties to certain brands of oil. They’ll swear by their favorite brand and assure you that anything else is bound to ruin your engine. But we’re here to dispel that myth. After nearly 20 years of testing oils from thousands of different engines and industrial machines, we have discovered a simple fact: it doesn’t really matter what brand of oil you use. But wait! Before you dismiss us as heretical, listen to what we do recommend. We always suggest using an oil grade recommended for your engine by the manufacturer and a brand that fits your budget. The grade of oil is much more important to performance than the brand of oil. In fact, here’s another little secret. The oil you can find at any mass retailer is actually name-brand oil, but with the store’s label on it. Think about it. A retail store is not in the business of manufacturing oil. They buy their oil from the big oil companies and put their name on the bottle. The only difference between the “generic” brand and the name-brand oil is the name on the bottle and about 50 cents per quart. We analyze oils from our personal use engines (right down to our lawn mowers) religiously. We tend to choose oils that do not contain additives that can get in the way of elements we want to see in the analysis. For instance, some light, multi-grade oils use compounds of copper and/or sodium as oil additives. The copper additive masks brass or bronze wear from the engine. Sodium additives can mask anti-freeze contamination.
Pertaining to Amsoil, same lab, this is what I found..
A Brand New Perspective Digging Into the Timeless Question, “Which Oil is Better?” by Travis Heffelfinger I was talking to a customer recently, going over the results from his latest oil report, and the conversation went a little something like this: Him: “So, I’m using Rotella in this engine… is that the best choice?” Me: “It certainly seems to be doing a good job. You’d probably get good results with whatever oil you used, but this is working fine.” Him: “Would I be better off if I switched to Mobil 1?” Me: “Well, you could, but I wouldn’t expect much change in engine wear. We find that the type of oil typically doesn’t matter when it comes to wear metals.” Him: “What about Amsoil? I’ve heard that’s the best oil out there.” Me: “That’s a good brand as well. We just don’t tend to see much difference in wear metals between different oil types, so whichever one you want to use is fine.” Him: “Okay, but what about that new Pennzoil Ultra stuff? I’ve heard that’s a much better product. Is that better than Amsoil, or not?” Me: [sigh…] This discussion went on for a while.
Concerning the difference in price of oils, higher price must be better is this...
By far, the most common question we get is, “Which oil should I use?” And that’s understandable. You’re just trying to do what’s right for your engine, and each oil promises to be the absolute best. After all, there’s got to be some reason why you can pick up a cheap, store-brand oil for about $2.50 a quart, while other types of oil go for $10 per quart or more. There have to be some differences, right? Well, of course there are. Different brands have different levels of additives, start from different base stocks, and undergo different manufacturing processes, making some types of oil a lot more expensive than others. But the real question is, do those differences have a meaningful effect on how your engine is wearing?
The answer was no. (my words from reading whole article.)
Last edited:
