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Discussion Starter #1
Reason why I ask this is because I have a jug of Penzoil Ultra 5W20 left from my Charger RT.
 

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You should use what the car calls for. But to be honest, I doubt it would do any harm.
 

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Mix it with 40w and that'll average it out.





Yes, I'm kidding.
 

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Discussion Starter #6
Mix it with 40w and that'll average it out.





Yes, I'm kidding.
Better yet, how about some Mrs. Butterworth's syrup. That ought to thicken it up a bit. I hope nobody takes you for serious about mixing it with 40W, lol.
 
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