Thread: Oil Brands????
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Old Feb 25, 2005 | 11:03 AM
  #37  
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redgoober4life
I eat plastic.
 
Joined: Dec 2002
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From: Detroit, MI
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Originally Posted by JL95AccorD
Why do shops and auto part stores recommend something heavier for older cars?
Because it tends to smooth out the idle. But not much, and any mechanic will tell you this is just a temporary "fix".
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