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06-20-2010, 08:28 PM
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#1 |
     
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Can I use 5w-20????
Can I? I already have it.
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06-20-2010, 09:34 PM
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#2 |
 
Drives: Red LT1 & Silver LS3 Join Date: Feb 2010
Location: Maine
Posts: 221
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Can you? Yes. Should you? No.
For warranty concerns, your owners manual is very specific: 5w30 unless you live in a particular climate (your manual will say the temp) that allows for 0w30. |
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06-21-2010, 07:30 AM
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#3 |
   
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No. You need to run <something>-W-30 (depending on the temps in your area).
__________________
Black 2SS ordered 1/4/2010, received 2/19/2010
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06-21-2010, 08:29 AM
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#4 | |
   
Drives: 2SS/RS Join Date: Sep 2008
Location: Western North Carolina
Posts: 7,182
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Quote:
 Don't do it. The operating viscosity of 5w-20 is worse then the operating viscosity of 5w-30. Once the car gets up to running temperature you will only be causing damage to the engine due to less lubrication. |
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06-21-2010, 12:39 PM
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#5 |
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I am the Stig
Drives: Black w/ IOM stripe 1SS Join Date: Jan 2010
Location: Saskatoon, SK, CAN
Posts: 1,312
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absolutely not
the bearing clearances are designed around the size of the hydrodynamic wedge created by the operating viscosity of SAE 30 rated oil. Using 20 will change the wedge size/shape and ruin your bearings.
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2010 Camaro - 1SS, Black w/ Orange stripes
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