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Old 02-12-2005, 11:50 AM   #23
Scooby Specialist
Member#: 37644
Join Date: May 2003
Location: Washington
2009 Legacy 2.5i


Originally Posted by bluesubie
Redline 5W30 is thickAr than M1 10W30 at 100C, and has a higher high temp high shear viscosity as well. Must be those polyol ester base stocks.

My head is spinning too.

Yeah...when I was looking into oils, I noticed that Mobil1 10W30 was somewhere in between Redline 5W30 and 10W30. I guess you can't always go directly off weights...I'm definitely gonna try M1 10W30 next oil change. It doesn't seem like a huge jump from M1 5W30....which is thin already.
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