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Old Jun 28, 2010 | 08:51 AM
  #1  
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5280
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From: South Park, Colorado
Oil questions

I stopped off at Wally World yesterday to pick up oil, I had planned on changing over to Rotella synthetics, but a little bit of confusion. I did not realize there are two types, T5 is a 10w30 and T6 is a 15w40. Which one should I run in my truck? 00' 7.3 w/177k miles. Mainly used to haul the kids around but we do tow a horse or camping trailer a couple of times per month.
 
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Old Jun 28, 2010 | 08:56 AM
  #2  
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clintbonnie
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From: Ardenvoir, Washington
The syn type is Rotella T 5w40 that a lot of use here on the forum.. (10W30 is not the correct spec for our trucks & the 15W40 is not syn..)
 
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Old Jun 28, 2010 | 08:59 AM
  #3  
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Ponyboychris
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From: Kiowa CO
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Either the 15w40 dino oil or the 5w40 synth is what you want. I use the synth all year round and love it.
 
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Old Jun 28, 2010 | 09:09 AM
  #4  
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5280
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I must have miss-read the bottle as they were both synthetic. 5w40 it will be for my next oil change. Thanks for the help.
 
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