Lower thermostats, really needed?

[Bigmac18]

Good to know

 

[Paul Nelson]

I wouldn't say it is a design flaw so much as the setup does not take into account the high oil temperatures that arise as a result of heavy towing. Those high oil temperatures yield higher than expected oil vapor content, which results in a damaged MAF sensor more often than not. The vast majority of owners have no idea whatsoever that they have a very critical sensor that is reading 15-25% off.

Is there a solution to this problem with the 6.0s? I just picked up a 2011 GMC Yukon XL 2500 and will be towing with it.

Thanks,

Paul

 

[Cbark2305]

I have a 07 6.2 denali and runs at 210...is this normal? Seems a little warm to me

 

[Doubeleive]

I have a 07 6.2 denali and runs at 210...is this normal? Seems a little warm to me

it's normal and where it should be

 

[sickpup]

nope.. irrelevant and useless.. been there done that

 

[Doubeleive]

I wouldn't say it is a design flaw so much as the setup does not take into account the high oil temperatures that arise as a result of heavy towing. Those high oil temperatures yield higher than expected oil vapor content, which results in a damaged MAF sensor more often than not. The vast majority of owners have no idea whatsoever that they have a very critical sensor that is reading 15-25% off.

I realize this a old thread, however can you explain how oil vapor is reaching the MAF sensor? did you mean MAP sensor? or something else?

 

[BlackBearPerf]

I realize this a old thread, however can you explain how oil vapor is reaching the MAF sensor? did you mean MAP sensor? or something else?

Happy to answer any questions. On engine shut down that vapor permeates the entire intake tube. Upwards of 80% of vehicles used for heavy towing we see in person have to have the MAF cleaned or replaced.