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      06-09-2017, 02:30 PM   #18
lens
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Quote:
Originally Posted by oceanview View Post
Sorry for my late response.
First the 5w-40 has a higher viscosity as the 5w-30. Which means the 40 Oil is thicker compared to the 30 Oil.
At the same oil temperature the engine needs more power to run with a SAE40 Oil than with a SAE30 Oil.
http://articles.sae.org/11945/
So what you write makes no sense to me.
There is no sense there, all you need to do is run 5w30 for awhile, then switch to 5w40 (motul, liquimoly) and you'll feel the difference.
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