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Old 01-20-2012, 03:42 PM   #4
Kevin in NJ
Senior Member
 
Join Date: May 2010
Location: South East NJ
Posts: 3,398
Default Re: Oil, straight vs. multi ?

See the link below as it may help answer the question.

Talk about oil viscosity

What is also important is properly protecting the engine from nasty chemicals that will form. This is done with additives to prevent nasty chemical build up.
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