Jump to content

Cooler thermostat question

tyler.frost92

By tyler.frost92
in Engines & Drivetrain

Recommended Posts

Grumpy Bear Senior Enthusiast

Grumpy Bear

Posted
Posted
3 hours ago, tyler.frost92 said:

 


Just odd, never had a truck that's ran this hot while towing. I figured it wouldn't be out of the question to shave off 10-15 degrees.


Sent from my iPhone using Tapatalk Pro

 

IF your absolutely certain the entire system is perfect...………… IT IS PERFECT RIGHT...then......

 

I'm going to catch heat for this but there is a card not yet played. 

 

20% undiluted Dex Cool, 80% RO water + ONE bottle of Red Line Water wetter.  Go back to 50/50 late fall before it is freezing.

Get greedy and use straight water and wetter or your under 20% glycol and use you AC you WILL break things. 

 

If you forget this fall and you break it ...I won't know who you are. 

 

Past that your going to spend some money on your system. Thicker core, aux trans cooler, aux oil cooler, fan settings and so on. 

  • Replies 37
  • Created
  • Last Reply
mookdoc6 Senior Enthusiast

mookdoc6

Posted
Posted
24 minutes ago, Grumpy Bear said:

IF your absolutely certain the entire system is perfect...………… IT IS PERFECT RIGHT...then......

 

I'm going to catch heat for this but there is a card not yet played. 

 

20% undiluted Dex Cool, 80% RO water + ONE bottle of Red Line Water wetter.  Go back to 50/50 late fall before it is freezing.

Get greedy and use straight water and wetter or your under 20% glycol and use you AC you WILL break things. 

 

If you forget this fall and you break it ...I won't know who you are. 

 

Past that your going to spend some money on your system. Thicker core, aux trans cooler, aux oil cooler, fan settings and so on. 

Yup....I  would go 60/40 and you don't have to change in Fall is all I would add. It might ever so slightly lower it.  Never go above 60/40 is my rule.....maybe time for aftermarket on the Cooler?

flyingfool Senior Enthusiast

flyingfool

Posted
Posted
18 hours ago, tyler.frost92 said:

 


Trans was running a consistent 185 pretty much the entire time. Truck has always been like this. Snapped the pic over an hour into my drive, I run 75-85 on the highway. No reason I shouldn't be able to do so with a pop up on the back, and have to back off speed. Temps were cycling between 215-221 the whole way, oil temps between 225-231. Unloaded normal driving the truck usually runs between 185-210 depending on traffic and ambient temperature.


Sent from my iPad using Tapatalk Pro

 

i thought the speed limit while towing with a pick up on a hitch was 55mph? i would look the otherway if your a 5th wheeler, but you sound like a weekend warrior type..

tyler.frost92 Enthusiast

tyler.frost92

Posted
  • Author
Posted
i thought the speed limit while towing with a pick up on a hitch was 55mph? i would look the otherway if your a 5th wheeler, but you sound like a weekend warrior type..


No that's not the case. Not sure what you mean by weekend warrior. I asked for help on cooling don't need to be chastised for driving the speed limit or 5 over with a 3000lb popup


Sent from my iPhone using Tapatalk Pro
Grumpy Bear Senior Enthusiast

Grumpy Bear

Posted
Posted
24 minutes ago, tyler.frost92 said:

 


No that's not the case. Not sure what you mean by weekend warrior. I asked for help on cooling don't need to be chastised for driving the speed limit or 5 over with a 3000lb popup


Sent from my iPhone using Tapatalk Pro

 

Question of curiosity.  What's the speed rating of the trailers tires? There small ones, right? 

tyler.frost92 Enthusiast

tyler.frost92

Posted
  • Author
Posted
Question of curiosity.  What's the speed rating of the trailers tires? There small ones, right? 


Probably 65 or 75 if I had to guess


Sent from my iPhone using Tapatalk Pro
Grumpy Bear Senior Enthusiast

Grumpy Bear

Posted
Posted
1 minute ago, tyler.frost92 said:

 


Probably 65 or 75 if I had to guess


Sent from my iPhone using Tapatalk Pro

 

L rating is 75 mph max

M is 81 mph

If there is no designation on the tire then it is 65 mph.

 

For those around you, please....check and either upgrade if needed or adjust speed are required. Please. Don't guess. Others depend on you too. Thank you for your consideration. 

 

Pearl2017 Enthusiast

Pearl2017

Posted
Posted

If you pull out the shutters assy you'll see that you can unsnap a bunch of the shorter ones from the frame and remove them without getting a CEL. the longer ones stay in attached to the actuator. This will let a bit more air in even with the shutters closed. For thermostat get yourself a camaro,vette or caddy tstat and Youll see there is a small flattened dimple on the disk where a 3/16" bleedhole can be drilled. This is an old Chevy trick that will drop the temp just a bit more. if you have one, flip the trans cooler tstat  over to lower the trans temp about 30 degrees. Are you running premium 94 in that 6.2 when you tow? If you go lower grade the engine will detune and likely heat will go up. My guess the main heat issue is the speed you're running. With a large load and tall gearing there likely is some knock and lots of timing is being pulled. from the logging Ive done the stock 6.2 tune has timing pretty close to the edge for the 91 gas available around here.

 

Grumpy recommended Water Wetter ...i wouldn't touch that stuff. Google "Brown Gunk". that stuff breaks down and gets a nasty brown oily color i found out the hard way myself.

 

Grumpy Bear Senior Enthusiast

Grumpy Bear

Posted
Posted
6 hours ago, Pearl2017 said:

Grumpy recommended Water Wetter ...i wouldn't touch that stuff. Google "Brown Gunk". that stuff breaks down and gets a nasty brown oily color i found out the hard way myself.

 

I've used this product for 20 years without such an issue. Interesting. 

flyingfool Senior Enthusiast

flyingfool

Posted
Posted

anyone know if the larger radiator from the Durmax will bolt upto the stock gas truck rad support? it has to have much bigger cores to handle the diesle energy...

mookdoc6 Senior Enthusiast

mookdoc6

Posted
Posted
On 4/11/2020 at 1:37 PM, gat0r said:

Mishimoto radiator looks like it would help cool things down well

With the Mishi comes price as we all know....Let's face it these pigs Run Hot and GM likes em running hot...I am learning to accept it.

JONBLARC7 Enthusiast

JONBLARC7

Posted
Posted

What gas are you running???

 

I pull a much heavier load with my boat which is 6,500 to 7,000 depending on how full my 43 gallon gas tank is.  I pull at 65 and never hit those numbers.

tyler.frost92 Enthusiast

tyler.frost92

Posted
  • Author
Posted
What gas are you running???
 
I pull a much heavier load with my boat which is 6,500 to 7,000 depending on how full my 43 gallon gas tank is.  I pull at 65 and never hit those numbers.


Nothing but 93. If you're only monitoring the coolant temp from the stock gauge you would never think it's over 200/210


Sent from my iPad using Tapatalk Pro

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.5k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,902
    Total Members
    8,960
    Most Online
    whenindoubtuseahammer
    Newest Member
    whenindoubtuseahammer
    Joined

  • Who's Online   1 Member, 0 Anonymous, 293 Guests (See full list)

  • Latest Articles

  • Posts

    • davester
      My First Project and GMC has me stumped

      By davester · Posted

      are there any codes? with lots of rust, perhaps disconnect/clean both sides of the connection/examine cable ends (the wires) for corrosion going into the sheath & replace if necessary/reconnect ALL the power AND ground cables between the battery, engine, frame, cab, fuse box and starter charm.li (website) has a no-start diagnostic procedure you can work through to get it working.
    • Chuck FB
      OCI, not when but why?

      By Chuck FB · Posted

      Its no wonder you've gravitated to the oil types and brands you have in later years after trying certain brands and one being a specialty oil or at least very hard to come by up here and the other would have been a commonly found oil of the era and the vastly different outcomes as a result to using the vehicles in question the same distance for an OCI . It shows what marketing hype can do without actually having the product to back up the claims and that is no different now with the insane claims that are written on the side of a bottle of oil from some of the off the shelf oils.    What has surprised me and I was already finding this out before I bought my truck with the GDI engine, that this newer fancy technology that seemingly would suggest better fuel economy/emissions with this high pressure spray of fuel is not in reality kind at all to the engine or at least the oils life. Yet they insist on claiming long OCI with this technology just like they did with the port or similar type fuel injection systems when in reality its a step back in oil life to have a GDI system.    I think the mistake your making Grumpy is that your not sending your samples to Blackstone and getting the feel good glowing report that you can run it another 1000 or more miles and then send another sample where they say run it yet another 1000 miles and on and on it goes until your sending in something that looks a lot like road tar and then they may suggest you change your oil within the next 1000 miles 😆
    • Chuck FB
      OCI, not when but why?

      By Chuck FB · Posted

      I am guessing that engines of that design back then had a better ability to be abused and survive longer than a new design engine with the long timing chain and the overhead cams and phasers etc. But I would never guess that an engine could go that far and not fail spectacularly or at least die a slow death. 
    • Grumpy Bear
      OCI, not when but why?

      By Grumpy Bear · Posted

      In the 80's 90's I'd run Honda's 7,500 miles between changes using Red Line HP 5W20 and do it for hundreds of thousands of miles with issues. Back in the day it was an SAE 20 with the HTHS of a SAE 30 and SN add load. It was also very polar. Oxidation VOA was over 120. Besides those motors were SPFI and lean burn tech. I could have likely run it longer but never did.    We had a Toyota bought new I ran on Pennzoil's latest and greatest synthetic of the day with "Penthane". A made up word for a very low dose of PAO. Tried 7,500 mile OCI's in that Group III/VI chemistry and the rings tapped out at 90K. Rocker box wasn't as bad as the one Punch put up but it wasn't good either. Also a SPFI motor.    I'm around 3,750 across the board on these GDI monsters and the oil it tapped out by then usually on TBN/TAN crossover and color. Red Line HP Euro.    The AMSOIL SS brochures tell you to follow the OEM values for the service class but that it can be run up to 25K if monitored. I can't imagine what motor could go that distance and not tap out. I've never owned one.    Yes, I know. Lot's of people do. I'm just not going to be one of them. 
    • Grumpy Bear
      OCI, not when but why?

      By Grumpy Bear · Posted

      I knew a guy in the early 80's that bought a new Monte Carlo and ran it a 100,000 miles without ever changing the filter or the oil. Just kept adding. It looked like that inside.     

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...