"flush"

kb9uwu · 06-07-2016, 10:31 AM

Why does (almost) everyone refer to changing transmission and differential oil as a flush? There's nothing being flushed. It's the same as changing the engine oil. Why don't people say they flushed their engine oil?

Flush:
"A transmission flush is a maintenance process where all of the oil in a transmission is removed, new oil (and sometimes cleaning solutions) is run through it using a special machine to push out grime and sludge and then it is filled up with new oil. The process is used to remove debris and sludge and replace 100% of the used oil with fresh, clean quarts."

jphughan · 06-07-2016, 10:45 AM

Why do some parts of the world call it a boot rather than a trunk when it clearly looks more like a trunk (chest) than a boot (footwear item)? Why are these the types of threads being created on M3Post these days?

At least in the case of the trans, to FLUSH it properly you actually have to run a pump rather than just letting it drain, so that more active process could be part of it.

cenix · 06-07-2016, 10:52 AM

Why do you say flush the toilet instead of change the toilet water?

kb9uwu · 06-07-2016, 12:23 PM

Quote:

Originally Posted by jphughan

Why do some parts of the world call it a boot rather than a trunk when it clearly looks more like a trunk (chest) than a boot (footwear item)? Why are these the types of threads being created on M3Post these days?

At least in the case of the trans, to FLUSH it properly you actually have to run a pump rather than just letting it drain, so that more active process could be part of it.

To answer your second question. Isn't this the "general discussion" section of the forums? For general discussion? I've read at least 10 people this morning say they got their diff/tranny flushed. Just wondering why people say this and why they don't say they got their engine oil flushed.

As for the using the pump on the transmission, how is that flushing?

"A transmission flush is a maintenance process where all of the oil in a transmission is removed, new oil (and sometimes cleaning solutions) is run through it using a special machine to push out grime and sludge and then it is filled up with new oil. The process is used to remove debris and sludge and replace 100% of the used oil with fresh, clean quarts."

kb9uwu · 06-07-2016, 12:24 PM

Quote:

Originally Posted by cenix

Why do you say flush the toilet instead of change the toilet water?

Dude, I always say I changed the toilet water!

Raek · 06-07-2016, 12:28 PM

Why do we drive on parkways and park in driveways?

kb9uwu · 06-07-2016, 12:30 PM

ok, well thread fail.

just trying to explain there's a difference between changing oil (what we do with our diffs/trans/engine) and a FLUSH.

delete thread, carry on

bimmerfrk · 06-07-2016, 12:36 PM

why do we drive on the parkway and park on the driveway. .... the world will never know.

jphughan · 06-07-2016, 12:57 PM

Quote:

Originally Posted by kb9uwu

To answer your second question. Isn't this the "general discussion" section of the forums? For general discussion? I've read at least 10 people this morning say they got their diff/tranny flushed. Just wondering why people say this and why they don't say they got their engine oil flushed.

As for the using the pump on the transmission, how is that flushing?

"A transmission flush is a maintenance process where all of the oil in a transmission is removed, new oil (and sometimes cleaning solutions) is run through it using a special machine to push out grime and sludge and then it is filled up with new oil. The process is used to remove debris and sludge and replace 100% of the used oil with fresh, clean quarts."

Ok yes, this is the general discussion thread, but honestly what sort of discussion were you expecting here? You're asking people why they call things what they do, and the reason is just....that they do. I suppose you're right that flush isn't technically the right term for this procedure, but I'm sure people talk about stepping on the gas in their Teslas as well. You've observed a curious behavior, and that's really all there is to it. There isn't really anything to discuss on a topic like this.

kb9uwu · 06-07-2016, 01:01 PM

Quote:

Originally Posted by jphughan

Ok yes, this is the general discussion thread, but honestly what sort of discussion were you expecting here? You're asking people why they call things what they do, and the reason is just....that they do. I suppose you're right that flush isn't technically the right term for this procedure, but I'm sure people talk about stepping on the gas in their Teslas as well. You've observed a curious behavior, and that's really all there is to it. There isn't really anything to discuss on a topic like this.

I was simply curious why people referred to a fluid change as a flush. Hence my first question in the first line of my post. Sorry you've had to respond to me so many times!

cmo_93 · 06-07-2016, 02:15 PM

Quote:

Originally Posted by cenix

Why do you say flush the toilet instead of change the toilet water?

This made me laugh from a healthy place.

dparm · 06-08-2016, 07:49 PM

Quote:

Originally Posted by kb9uwu

ok, well thread fail.

just trying to explain there's a difference between changing oil (what we do with our diffs/trans/engine) and a FLUSH.

delete thread, carry on

No, I think your point is perfectly valid. There is a very big difference between a flush and a drain + refill. If people want to be obtuse and argue for no reason, well, that's the Internet for you. I guess the pushback is to the effect of, "what do you want us to do about it?"

Longboarder · 06-08-2016, 08:24 PM

With the toilet my favorite is the dry dock. Upper decker funny but the execution is difficult.

kb9uwu · 06-09-2016, 08:39 AM

Quote:

Originally Posted by dparm

No, I think your point is perfectly valid. There is a very big difference between a flush and a drain + refill. If people want to be obtuse and argue for no reason, well, that's the Internet for you. I guess the pushback is to the effect of, "what do you want us to do about it?"

I tried, like you said, it's the internet. People love basking in their ignorance

At least jphughan learned something, at least!

Denk · 06-09-2016, 10:23 AM

It's just semantics.

Amirsm3 · 06-09-2016, 10:34 AM

If you run cleaning solution and/or fresh oil through the motor BEFORE adding in the final amount, then you're flushing the engine oil. I denno. I've always been under the notion there was a difference.

kb9uwu · 06-09-2016, 11:04 AM

Quote:

Originally Posted by Amirsm3

If you run cleaning solution and/or fresh oil through the motor BEFORE adding in the final amount, then you're flushing the engine oil. I denno. I've always been under the notion there was a difference.

You are 100% correct. Yay! Here's an E30 for you

Normally you only do a flush if you find lots of metal/contaminants inside engine/tranny/diff etc.

Amirsm3 · 06-09-2016, 11:06 AM

Quote:

Originally Posted by kb9uwu

You are 100% correct. Yay! Here's an E30 for you

Normally you only do a flush if you find lots of metal/contaminants inside engine/tranny/diff etc.

Flying Ace · 06-09-2016, 03:28 PM

They're referring to the flushing of one's wallet due to the M tax

06-07-2016, 10:31 AM	#1
kb9uwu Supreme Czar 309 Rep 779 Posts Drives: AW E90 M3 6MT (GONE) Join Date: Oct 2014 Location: Central Illinois iTrader: (0)	"flush" Why does (almost) everyone refer to changing transmission and differential oil as a flush? There's nothing being flushed. It's the same as changing the engine oil. Why don't people say they flushed their engine oil? Flush: "A transmission flush is a maintenance process where all of the oil in a transmission is removed, new oil (and sometimes cleaning solutions) is run through it using a special machine to push out grime and sludge and then it is filled up with new oil. The process is used to remove debris and sludge and replace 100% of the used oil with fresh, clean quarts." Last edited by kb9uwu; 06-07-2016 at 12:38 PM..
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06-07-2016, 10:45 AM	#2
jphughan Brigadier General 594 Rep 4,488 Posts Drives: '16 Cayman GT4 Join Date: Mar 2011 Location: Austin, TX iTrader: (0)	Why do some parts of the world call it a boot rather than a trunk when it clearly looks more like a trunk (chest) than a boot (footwear item)? Why are these the types of threads being created on M3Post these days? At least in the case of the trans, to FLUSH it properly you actually have to run a pump rather than just letting it drain, so that more active process could be part of it. __________________ '16 Cayman GT4 (delivery pics, comparison to E92 M3 write-up) Gone but not forgotten: '11.75 M3 E92 Le Mans \| Black Nov w/ Alum \| 6MT (owned 5/2011 - 11/2015)
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06-07-2016, 10:52 AM	#3
cenix Captain 379 Rep 875 Posts Drives: E90 M3 ZCP Join Date: Oct 2011 Location: SoCal iTrader: (5)	Why do you say flush the toilet instead of change the toilet water?
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06-07-2016, 12:28 PM	#6
Raek Major 901 Rep 1,044 Posts Drives: 08 M3, '17 Macan GTS Join Date: Nov 2014 Location: New York iTrader: (1)	Why do we drive on parkways and park in driveways? __________________ I did a lot of things to it.
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06-07-2016, 12:30 PM	#7
kb9uwu Supreme Czar 309 Rep 779 Posts Drives: AW E90 M3 6MT (GONE) Join Date: Oct 2014 Location: Central Illinois iTrader: (0)	ok, well thread fail. just trying to explain there's a difference between changing oil (what we do with our diffs/trans/engine) and a FLUSH. delete thread, carry on
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06-07-2016, 12:36 PM	#8
bimmerfrk Lieutenant 591 Rep 534 Posts Drives: Ferrari Red F83 Join Date: May 2012 Location: Tristate Area iTrader: (0)	why do we drive on the parkway and park on the driveway. .... the world will never know. __________________
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06-08-2016, 08:24 PM	#13
Longboarder Major General 3431 Rep 6,771 Posts Drives: 2016 BMW i8 Join Date: Dec 2006 Location: Monarch Beach iTrader: (1) Garage List 2012 BMW e92 M3 [0.00] 2021 BMW X5M [10.00] 2015 Porsche 991 Tu ... [10.00] 2015 Porsche 991 GT3 [10.00]	With the toilet my favorite is the dry dock. Upper decker funny but the execution is difficult. __________________ Current BMWs: 2022 X5 40i, 2016 X5 50i 2015 Porsche 991 Turbo S 1979 Porsche 911 Turbo (930) a couple others IG: longboarder949; YouTube: https://www.youtube.com/channel/UCT1...eoFBszPIK0gf9w
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06-09-2016, 10:23 AM	#15
Denk Brigadier General 1006 Rep 3,341 Posts Drives: 2021 X5M Join Date: May 2011 Location: PNW iTrader: (2)	It's just semantics.
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06-09-2016, 10:34 AM	#16
Amirsm3 Brigadier General 514 Rep 3,482 Posts Drives: 2011 Space Grey e90 M3 Join Date: Feb 2014 Location: Williams/Flagstaff, AZ iTrader: (3)	If you run cleaning solution and/or fresh oil through the motor BEFORE adding in the final amount, then you're flushing the engine oil. I denno. I've always been under the notion there was a difference. __________________ 2011 e90 M3 Space Grey DCT ZCP- eAs, BMW Performance, Agency Power, Macht Schnell, iND, Milltek, Volk, Challenge, Stoptech, Ohlins BMWCCA:518970
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06-09-2016, 03:28 PM	#19
Flying Ace Lieutenant General 4985 Rep 11,891 Posts Drives: G05 45e, 997.1 & 991.1 GT3s Join Date: Jul 2014 Location: SF, CA iTrader: (5)	They're referring to the flushing of one's wallet due to the M tax __________________ 22 Phytonic/Coffee X5 45e (CoVID-free) 08 Speed Yellow 911 GT3 Sharkwerks 12 AW/Cinnamon X5d Sports Pkg (retired) 14 AW/Beige M6GC ZCP, MPE, V2 steering wheel, vorsteiner (retired) 08 SSII/Black E90 M3 (retired)
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