I now have boost

snicklas

6.0 and Loving It!!
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That 6.7 may actually spec 10w-30 not sure, I don't own one. I run 5w-40 full synthetic diesel oil in my 6.0....... makes them much happier.
 

79jasper

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Iirc, they do.
You probably don't run your 6.0 hard enough to make a difference, but I was told the 15w-40 will hold icp better.

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Thewespaul

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I also have an 03 6.0. Bought it new, after paying for it a second time in repairs the first 200k, its treating us well, even with metal shavings in every oil change. Would I do it again? Hell no. Especially with how much of a pain it is on that truck, but I can't afford to not run it till it dies with how much money we've had to drop into it.
 

gerlbaum

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Just a follow up on the oil. I really love it! Man did it quiet up the truck. Also glad I switched when I did because I live in Phoenix and for 10 days straight it's been over 115 (119 at the hottest).
 

gerlbaum

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So far it has needed a qt since I posted above, and I've driven about 2k. But this is about what the truck was using before. When it was 119 here those parking garage arms (the ones that move up and down) are made of pvc or something but it was so hot when the arm went up they just folded over because they got so hot lol.
 

gerlbaum

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I will say it really shut my motor up (probably due to the blend). I am going to try a full synthetic change at my next interval.
 

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