Originally Posted By: Spooner65
I should clarify. I already run Shell Rotella T6 with extended oil change intervals as supported by UOAs from Blackstone Labs. I am more interested in if Amsoil (or Schaffers) is worth the extra money and effort to obtain over the T6.
I applaud your approach to the use of synthetics.
So often, I see people use syns for all the wrong reasons. Extended OCIs are a very valid use of the products where one can actually expect (or at least hope) to get the ROI.
That being said, none of us can really give you a "yes or no" answer to the question, because no one can predict the answer nearly as well as you can experiment and truly find the answer. Do NOT believe any pundit that will tell you otherwise based upon hype and rhetoric.
You already have the tools in place to make this determination. Run several UOAs and see what they tell you about your current conditions, and how the lube and equipment are holding up. Then, swap to a different lube and do the same. Run at least 5 UOAs (perhaps 10k miles each) of each fluid to see how it compares and contrasts to the others. The downside to this approach is that it's expensive, and it will take many, many thousands of miles to determine which is truly "better".
I can say with complete confidence that I've seen excellent performance from these products. Amsoil, Shaeffers and T6 are all very capable fluids. But, depending upon individual application of fluid and equipment, there may or may not be a clear "winner" above the others.
The real question is whether, in your specific situation, is a premium lube worth the additional cost, relative to the performance it can provide? Let me assure you that NO ONE HERE can say with certainty; only you can determine that with experimentation.
I would ask, if you do choose to try Amsoil or Schaeffers, that you consider one of our sponsors here; support those who support us!
READ MY SIGNATURE LINE! That should be your guide to making a confident, calculated decision.