High oil temp while towing

[jimdawg185]

That oil was actually built for HD. They pulled out right at the last minute because of price. We actually private label for OEMs globally.

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[Jomax]

Which oil would u recommend for a hard working 6.7 in AZ heat? A 5w 30 syn or a 5w40?

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[HeavyAssault]

That T6 can handle the heat you posted. The PCM will defuel the truck before the oil fails.

 

[04cr450]

i think i am finished with t6^^ couple guys have been posting oil reports and they have not been coming back good with that oil. Its an ok oil, not true synthetic, and i have used it for 4 years now im ready to move to mobil 1 or something similar.

 

[jimdawg185]

Or move on to LE.....

I like 5w40 in the 6.0, 6.4, and 6.7. Or even up it to 15w40 if you are pushing over 1000 and sled pulling. A straight sled puller I would probably go to a straight 50 or 20w50.