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Oil plug design, anyone know why it is designed this way?

Black02Silverado

By Black02Silverado
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Black02Silverado Senior Enthusiast

Black02Silverado

Posted
Posted

The oil plug on my CTD "Cruze Turbo Diesel" is one I have never seen before.

I can say it makes one hell of a mess, since as soon as you back it out two threads it starts to piss oil everywhere. We all know, diesel oil sucks being so black and it gets hot.

Anyhow, here is a picture of my drain plug. Just don't understand why GM designed it this way. Must be a reason. If I can put a Fumoto valve in, that is what I plan on doing. Just got to make sure it will work and not mess anything up. Can't see why it would.

On to the pictures.

8B502D61-6DE8-4C78-B61A-FFB47C9AF72D_zps
F62A8C37-D5B8-4E6E-A97C-40E7FF43345C_zps

MikeNH Senior Enthusiast

MikeNH

Posted
Posted

A quick search claims it will supposedly drain through those little holes. But it certainly is strange.

Black02Silverado Senior Enthusiast

Black02Silverado

Posted
  • Author
Posted

It drains through the holes alright, and spreads out across the oil pan and splashes everywhere! What a mess it makes if you don't hold the drain pan up close.

newdude Senior Enthusiast

newdude

Posted
Posted

Chevrolet's turbo-diesel four-cylinder was designed in Torino, Italy, and is manufactured in Kaiserslautern, Germany. It's not a new engine, as it is already being used in Opel Astras and various other GM vehicles around the world. Still, the U.S. version is unique, including the engine oil pan drain plug.

 

Engine Oil/Filter Capacity

Notice: DO NOT overfill the diesel engine when performing an engine oil/filter change. If the diesel engine is overfilled, the engine can continue to run when turned OFF by using the additional oil as fuel, resulting in internal engine and exhaust system damage.

When performing an engine oil/filter change, it is critical that the diesel engine is not overfilled. Including the oil filter, the engine oil capacity is 4.75 quarts (4.5 liters) of oil.

 

Engine Oil Pan Drain Plug:

Notice: DO NOT remove the engine oil pan drain plug when changing the engine oil. Removing the engine oil pan drain plug completely will result in the engine oil pan drain plug gasket becoming dislodged or lost.

The engine oil pan drain plug looks like a banjo bolt, but acts more like a valve. This type of drain plug does not have to be removed to drain the oil. Just unscrew it a few turns and the oil will flow out of the holes in the bolt.

 

Notice: DO NOT remove the engine oil pan drain plug when changing the engine oil.

 

 

 

POS VETT Enthusiast

POS VETT

Posted
Posted

How many radial holes are there? Just one or opposing two?

CapitalTruck Senior Enthusiast

CapitalTruck

Posted
Posted

The plug being designed that way will allow a person who overfills the oil sump to drain off excess without redoing the whole oil change, thus highly increasing the probability that an overfilled sump will actually be dealt with properly.

Silverado4x4 Senior Enthusiast

Silverado4x4

Posted
Posted

I think it was my 2001 I had, they had it designed so prefect that when you pulled the oil pan drain plug the oil would come out hit the exhaust pipe and spray in a fan shape and the shit would go everywhere but in the pan. I got smart after the 4th oil change and made a back splash deflector to prevent it. :mad:

Black02Silverado Senior Enthusiast

Black02Silverado

Posted
  • Author
Posted

How many radial holes are there? Just one or opposing two?

There are 4 holes total.

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