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GMT 800 & Older GM General Discussion 2006 & Older Trucks | General Discussion
View Poll Results: What weight oil?
0w30
1
3.57%
5w30
15
53.57%
10w30
7
25.00%
5w30 winter 10w30 summer
1
3.57%
5w40
2
7.14%
15w40
2
7.14%
20w50
0
0%
Voters: 28. You may not vote on this poll

What weight oil do you run in your NON DOD/AFM LS

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Old 08-18-2011, 01:26 PM
  #11  
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10-30 Valvoline High Mileage Synthetic Blend.

Stops the oil burning and queited the lifter noise I had with runing 5-30.
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Old 08-18-2011, 02:27 PM
  #12  
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15/40 amsoil synthetic diesel oil
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Old 08-19-2011, 08:37 AM
  #13  
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Originally Posted by 91Z28
Since it has come out I have used Penzoil Platinum 10w30 in all of my LS-based vehicles. 2006 GTO, 2009 and 2011 Silverado.
same here....
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Old 08-19-2011, 02:05 PM
  #14  
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5w30 Amsoil Heavy Duty diesel oil. Its suitable for gas or diesel engines and contains a ton of Zinc.
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