Originally Posted By: HKPolice
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Funny how you paid for at least 7 UOAs but would rather save $10 per change by choosing supertech oil.
I never said this shearing was BAD for the engine, just that it sheared more than top tier oils even with a shorter interval. You get what you pay for.
The money isn't an issue. I do it because I am a technical person and like seeing the results, especially to show people who aren't on forums, or those that are and still abide by the 3,000 mile rule that it isn't necessary and you can run "cheap" oil with great results. Especially when I have a vehicle with over 200,000 miles that has had that treatment the entire time and is still doing great.
To comment on the actual shearing you would need to compare a VOA to the UOA and see the viscosity difference, since we all know to fall within a 5w20 range there is an acceptable margin they can all be within. Some are "thick" 5w20's and some are "thin". Since I could not find a VOA for SuperTech 5w20, only the 5w30, I am not sure how you came to the conclusion. I did however show that Mobil 1 was indeed thinner than the SuperTech at the end of an identical interval since those were the numbers you were going by. The wear metals were fine, so probably little to worry about.
Originally Posted By: Bonz
The UOA’s I see show virtually the same miles on the same engine, SuperTech had slightly better viscosity in both categories, slightly better tbn and better wear numbers.
Who gives a care how many UOA’s he paid for? Supertech ranks better by the numbers I am looking at. Seems folks would rather run a more expensive oil and pay for analysis that shows it doesn’t do any better, in fact not quite as good in this case.
Where did Supertech shear more? Am I missing something?
Unless there is a VOA and UOA of the SuperTech 5w20, which I couldn't find and hope someone else can, I have no idea.