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

[Black02Silverado]

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.

 

[1BADSS396]

GM likes to make oily messes.

 

[PenguinLTZ]

Mine doesn't look like that. Not sure why they would do that.

 

[OldCracker29]

I can't think of one good reason why they'd put a hole in something meant to plug something up.

 

[Draenor]

Im assuming its to "help" draining the oil to not make a mess.

Back the plug out the two threads and let the oil drain out. then you should be able to remove the plug to get the rest. ....or... The design is to just back out the two threads and drain the oil without having to completely remove the bolt.

I don't see draining oil out that tiny hole. Them engineers and their engineering.

 

[Longshot270]

Because they want you to pay the dealership to do it for you.

Better make sure that sucker is on tight or you could run out of oil before you get home after the oil change.

 

[daddy]

It's to shave weight for street racing.

 

[Darkanion]

It's to shave weight for street racing.

+1

And for better cornering.

 

[daddy]

Speed holes.

 

[Darkanion]

MPG improvements.