Engine Oil Cooler?

  #1  
Old 12-27-2018, 10:54 AM
Enthusiast
Thread Starter
Join Date: Feb 2018
Posts: 32
Default Engine Oil Cooler?

Considering options for increasing engine cooling capacity in my 2011 Yukon Hybrid. When towing on warm days (>80įF), coolant temperature rarely goes lower than 220F (this happens whether Iím towing 3000 lbs or 5500 lbs). Iíve had it get above 230F on a few occasions as well and donít feel like going another summer trip constantly watching the temp gauge. Trans temp is fine.

Iíve seen LS motor aftermarket oil coolers that insert a port between the oil filter and filter housing and have a thermostatically controlled path through a cooler, but I donít know how risky of a setup that would be. Anyone have experience increasing cooling capacity on their Hybrid?
 
  #2  
Old 12-27-2018, 07:58 PM
Ridiculously Active Enthusiast
Join Date: Sep 2014
Location: Mesa, AZ
Posts: 2,926
Default Re: Engine Oil Cooler?

Sounds incredibly risky. I doubt an oil cooler would do much of anything to lower your coolant temperature.

I would consider:
  1. a lower temp thermostat.
  2. confirm that your radiator isn't blocked.
  3. confirm your fans are operating properly.
  4. possibly replace the temperature sending unit.
 
  #3  
Old 12-28-2018, 07:20 AM
Enthusiast
Thread Starter
Join Date: Feb 2018
Posts: 32
Default Re: Engine Oil Cooler?

Originally Posted by S Keith View Post
Sounds incredibly risky. I doubt an oil cooler would do much of anything to lower your coolant temperature.

I would consider:
  1. a lower temp thermostat.
  2. confirm that your radiator isn't blocked.
  3. confirm your fans are operating properly.
  4. possibly replace the temperature sending unit.
Iím going to start by cleaning out the radiator fins. I know some of the 5.3L trucks have oil coolers on them as well so thatís why Iím thinking it could help regulate overall engine temp better. Might also see if a larger radiator can be fitted. Some other places online say the temps I mentioned are normal for towing on a standard drivetrain vehicle but at the end of the day Iíd prefer to keep it below 220F for nothing more than peace of mind while driving.
 
  #4  
Old 12-28-2018, 07:39 PM
Ridiculously Active Enthusiast
Join Date: Sep 2014
Location: Mesa, AZ
Posts: 2,926
Default Re: Engine Oil Cooler?

Oil is terrible for heat transfer. Cooling it would do very little to cool the engine overall. Lots of effort for little or no gains towards the stated goal.

The coolant mix + pressure means you're not going to boil until about 250. Considering that you're doubling the power demand and the heat load, it's not surprising at all, and I would tend to agree with the crowd.

Again, make sure everything is working properly. I would assume the radiator fans are electric to decrease the parasitic load on the ICE as they've been demonstrated to be more efficient overall. Ensure they are functioning as intended. You might also look at devising a way to manually engage the cooling fans.
 
  #5  
Old 01-04-2019, 10:08 PM
Enthusiast
Join Date: Apr 2012
Location: Minnesota
Posts: 20
Default Re: Engine Oil Cooler?

I'm not remembering if the denali package started in 2011 or 2012, but i know there was a huge difference when i pulled the grille off my 2012 denali hybrid & towed my (5800#) camper compared to towing with it on. Temps rarely dropped below 220 on an 80f day with the grille on & held rock steady at 210 with a/c running when i took it off. The denali grill is apparently horrid for getting air to the radiator. Might be worth an experiment, it's easy enough to pop them off. It's not pretty but it'll tell you if it's an issue with airflow or not.
 
  #6  
Old 01-05-2019, 08:09 AM
Enthusiast
Thread Starter
Join Date: Feb 2018
Posts: 32
Default Re: Engine Oil Cooler?

Originally Posted by Dslade05 View Post
I'm not remembering if the denali package started in 2011 or 2012, but i know there was a huge difference when i pulled the grille off my 2012 denali hybrid & towed my (5800#) camper compared to towing with it on. Temps rarely dropped below 220 on an 80f day with the grille on & held rock steady at 210 with a/c running when i took it off. The denali grill is apparently horrid for getting air to the radiator. Might be worth an experiment, it's easy enough to pop them off. It's not pretty but it'll tell you if it's an issue with airflow or not.
Noted, thank you. I may also consider adding a sprayer to spray water on the radiator. Towing at 80į and rain the temps came down as well. Taking a page out of the Subaru intercooler sprayer handbook.
 
Related Topics
Thread
Topic Starter
Forum
Replies
Last Post
Green08
GM Hybrid Trucks, Cadillac Escalade Hybrid, Chevrolet Tahoe Hybrid & GMC Yukon Hybrid
1
02-10-2013 07:50 AM
avengence
Ford Escape Hybrid
0
07-25-2012 08:56 PM
raydoc
GM Hybrid Trucks, Cadillac Escalade Hybrid, Chevrolet Tahoe Hybrid & GMC Yukon Hybrid
3
10-11-2010 07:11 PM
pascha
HCH II-Specific Discussions
5
08-04-2008 08:12 PM
ChesapeakeTechie
Honda Civic Hybrid
9
08-27-2005 09:29 AM


Thread Tools
Search this Thread
Quick Reply: Engine Oil Cooler?


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.