Delete Engine Oil cooler?

I guess I've always considered them oil warmers? My current OEM radiator is leaking and I need to replace it. I am looking at deleting the EOC. Am I correct in assuming that I can just put a delete block above the oil filter and remove the lines and be done with it?

Nutro said:

I guess I've always considered them oil warmers? My current OEM radiator is leaking and I need to replace it. I am looking at deleting the EOC. Am I correct in assuming that I can just put a delete block above the oil filter and remove the lines and be done with it?

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Yes, you can do that.

It's job was to help quickly heat up the oil in cold weather and then maintain temperature in hot weather or high load conditions such as high speed pursuits or towing across Death Valley. I've always opted to keep it.

swathdiver said:

The motor oil cooler's job was to help quickly heat up the oil in cold weather ...

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So far so good ...

swathdiver said:

... then maintain temperature in hot weather or high load conditions, such as high speed pursuits or towing across Death Valley.

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Not as much.
For controlling motor oil in hot weather / high load conditions, Police Pursuit Vehicles use an external motor oil COOLER
that sheds heat to AIR instead of passing it off to the antifreeze.
Vehicles that do not work (or play) HARD don't need the external motor oil cooler,
the radiator's motor oil heat exchanger is enough - which is to say, KEEP IT.

@Nutro, IFF you're gonna delete the radiator's motor oil heat exchanger, which I can't recommend,
then upgrade to the PPV external motor oil cooler.

Also, keep in mind that if you own a 4WD SSV an oil cooler is recommended for towing.

Marky Dissod said:

So far so good ...Not as much.
For controlling motor oil in hot weather / high load conditions, Police Pursuit Vehicles use an external motor oil COOLER
that sheds heat to AIR instead of passing it off to the antifreeze.

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Never seen this, do you have a photo of it?

Yeah, the engine oil cooler was more like a towing or severe duty use option. No real issues deleting them, if you are not doing that kind of driving.

I rebuilt my 06 Suburban 2500 LQ4 engine in the Spring and temporarily installed a block-off plate I had laying around because my cooler lines had started seeping. Drove the truck through the summer as a daily. I bought new GM Genuine cooler lines in the Fall and will replace them soon...

Regarding the external coolers: from basic theory of thermodynamics, heat exchange rates is much better on fluids vs air. So they work, just not as good. I guess that's why modern engines are cooled with a fluids and are not air-cooled like those VW Beetles or like lawnmower engines.

swathdiver said:

Never seen this, do you have a photo of it?

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Page 94 of the pdf.

Note that the above proves me WRONG, about the GMT921 PPV & SSV at least: they both use a motor oil-to-coolant heat exchanger.