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#4552106 - 10/23/17 03:30 PM Pat Goss Opine on Blowby on DI Engines
Speak2Mountain Offline


Registered: 04/07/17
Posts: 346
Loc: Mississippi

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#4552152 - 10/23/17 04:22 PM Re: Pat Goss Opine on Blowby on DI Engines [Re: Speak2Mountain]
FowVay Offline


Registered: 06/02/02
Posts: 2678
Loc: Southeastern USA
edit: this video is a bit off topic so I apologize in advance.

This video explains a bit about the pre-ignition issue and why direct injection gasoline engines have excessive fuel in the motor oil. It's a rather interesting view.


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#4552154 - 10/23/17 04:24 PM Re: Pat Goss Opine on Blowby on DI Engines [Re: Speak2Mountain]
wemay Offline


Registered: 04/04/12
Posts: 8861
Loc: Southeast Florida
The MotorWeek (Goss' Garage video) discussed April of 2016...

https://bobistheoilguy.com/forums/ubbthreads.php/topics/4068874/1
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#4552173 - 10/23/17 04:54 PM Re: Pat Goss Opine on Blowby on DI Engines [Re: Speak2Mountain]
CKN Offline


Registered: 10/14/14
Posts: 3682
Loc: Utah
This is the same Pat Goss who many on this forum claim to be in the pockets of sponsors and is only a sounding board for their agenda.

RIGHT?


Edited by CKN (10/23/17 04:54 PM)

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#4552179 - 10/23/17 04:58 PM Re: Pat Goss Opine on Blowby on DI Engines [Re: CKN]
HerrStig Offline


Registered: 08/24/11
Posts: 9560
Loc: Boston, MA
Originally Posted By: CKN
This is the same Pat Goss who many on this forum claim to be in the pockets of sponsors and is only a sounding board for their agenda.

RIGHT?
Nope .....he's infallible.


Edited by HerrStig (10/23/17 04:58 PM)

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#4552207 - 10/23/17 05:20 PM Re: Pat Goss Opine on Blowby on DI Engines [Re: Speak2Mountain]
OneEyeJack Offline


Registered: 09/14/10
Posts: 7471
Loc: S California
A catch can is something that can help and won't hurt. The proof is after the installation, what you find in the jar.

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#4552209 - 10/23/17 05:22 PM Re: Pat Goss Opine on Blowby on DI Engines [Re: HerrStig]
CKN Offline


Registered: 10/14/14
Posts: 3682
Loc: Utah
Originally Posted By: HerrStig
Originally Posted By: CKN
This is the same Pat Goss who many on this forum claim to be in the pockets of sponsors and is only a sounding board for their agenda.

RIGHT?
Nope .....he's infallible.



smile eek

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#4552223 - 10/23/17 05:31 PM Re: Pat Goss Opine on Blowby on DI Engines [Re: Speak2Mountain]
oilpsi2high Offline


Registered: 12/18/14
Posts: 1318
Loc: NY, USA, etc.
Don’t 5th gen Camaro have SFI?

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#4552268 - 10/23/17 06:11 PM Re: Pat Goss Opine on Blowby on DI Engines [Re: Speak2Mountain]
Indydriver Offline


Registered: 03/20/11
Posts: 2152
Loc: Indiana
Catch can technology and usage is well established in the HO V8 world having been developed in the drag racing industry. I have a catch can on my LS3 Camaro. Since GM ventilates crankcase fumes back into the fresh air intake system, it is common sense that you’re going to have oil in the intake manifold. This is why car dealers are always suggesting a “fuel system cleaning” which should include a solvent cleaning of the intake manifold to remove these oily contaminants.

The thread posted by Wemay reveals a real lack of knowledge about catch cans on this forum. Try Camaro5 instead. And oilpsi2high is right in that this is not simply an injection type issue but rather how the engine builder chooses to deal with crankcase ventilation.


Edited by Indydriver (10/23/17 06:16 PM)
_________________________
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#4552278 - 10/23/17 06:15 PM Re: Pat Goss Opine on Blowby on DI Engines [Re: Indydriver]
CKN Offline


Registered: 10/14/14
Posts: 3682
Loc: Utah
Originally Posted By: Indydriver
Catch can technology and usage is well established in the HO V8 world having been developed in the drag racing industry. I have a catch can on my LS3 Camaro. Since GM ventilates crankcase fumes back into the fresh air intake system, it is common sense that you’re going to have oil in the intake manifold. This is why car dealers are always suggesting a “fuel system cleaning” which should include a solvent cleaning of the intake manifold to remove these oily contaminants.



This topic has been talked to death here on BITOG. For the average owner a catch-can is not cost effective. The average owner is much better off to pay for an occasional maintenance than trying to remember to empty a catch can.

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#4552284 - 10/23/17 06:19 PM Re: Pat Goss Opine on Blowby on DI Engines [Re: CKN]
Indydriver Offline


Registered: 03/20/11
Posts: 2152
Loc: Indiana
Originally Posted By: CKN
Originally Posted By: Indydriver
Catch can technology and usage is well established in the HO V8 world having been developed in the drag racing industry. I have a catch can on my LS3 Camaro. Since GM ventilates crankcase fumes back into the fresh air intake system, it is common sense that you’re going to have oil in the intake manifold. This is why car dealers are always suggesting a “fuel system cleaning” which should include a solvent cleaning of the intake manifold to remove these oily contaminants.



This topic has been talked to death here on BITOG. For the average owner a catch-can is not cost effective. The average owner is much better off to pay for an occasional maintenance than trying to remember to empty a catch can.

A good catch can costs about the same as a single “fuel system cleaning” at a dealer. So your definitive statement of its cost effectiveness is dubious. Does the “average” owner get his fuel system cleaned on a regular basis? I doubt it.


Edited by Indydriver (10/23/17 06:21 PM)
_________________________
2017 Mazda CX3 1000 FF
2014 Camaro 2SS/RS LS3 Vert 13,000 M1
2012 Sienna 75,000 M1
2011 Accord VCMV6 75,000 M1
2007 Tahoe 130,000 M1 HM


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#4552287 - 10/23/17 06:21 PM Re: Pat Goss Opine on Blowby on DI Engines [Re: Speak2Mountain]
StevieC Offline


Registered: 08/21/08
Posts: 17116
Loc: Ontario, Canada
popcorn Here we go...
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'06 Hyundai Santa Fe - 535,000km - SSO 0w30 (R.I.P)

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#4552292 - 10/23/17 06:26 PM Re: Pat Goss Opine on Blowby on DI Engines [Re: Indydriver]
CKN Offline


Registered: 10/14/14
Posts: 3682
Loc: Utah
Originally Posted By: Indydriver
Originally Posted By: CKN
Originally Posted By: Indydriver
Catch can technology and usage is well established in the HO V8 world having been developed in the drag racing industry. I have a catch can on my LS3 Camaro. Since GM ventilates crankcase fumes back into the fresh air intake system, it is common sense that you’re going to have oil in the intake manifold. This is why car dealers are always suggesting a “fuel system cleaning” which should include a solvent cleaning of the intake manifold to remove these oily contaminants.



This topic has been talked to death here on BITOG. For the average owner a catch-can is not cost effective. The average owner is much better off to pay for an occasional maintenance than trying to remember to empty a catch can.

A good catch can costs about the same as a single “fuel system cleaning” at a dealer. So your definitive statement of its cost effectiveness is dubious. Does the “average” owner get his fuel system cleaned on a regular basis? I doubt it.


Cost is one part of the equation. The other is the average owner emptying it. Like that's going to happen. Tell mister "Average Driver" he needs this catch can for say $300.00 (installed ballpark) and then tell him he needs to pop open the hood and empty it.

Lack of attention is why we have TPMS, "Service brake system soon" messages and other idiot lights. Again-the average owner is better off to PAY for a system cleaning.

You are right about a fuel system cleaning. It does get done when drivability problems creep up-however to give some Dealers credit-it is a recommended service at certain millage intervals.


Edited by CKN (10/23/17 06:30 PM)

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#4552320 - 10/23/17 06:48 PM Re: Pat Goss Opine on Blowby on DI Engines [Re: StevieC]
Indydriver Offline


Registered: 03/20/11
Posts: 2152
Loc: Indiana
Originally Posted By: StevieC
popcorn Here we go...

Where we going?
_________________________
2017 Mazda CX3 1000 FF
2014 Camaro 2SS/RS LS3 Vert 13,000 M1
2012 Sienna 75,000 M1
2011 Accord VCMV6 75,000 M1
2007 Tahoe 130,000 M1 HM


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#4552333 - 10/23/17 06:59 PM Re: Pat Goss Opine on Blowby on DI Engines [Re: CKN]
Indydriver Offline


Registered: 03/20/11
Posts: 2152
Loc: Indiana
Originally Posted By: CKN
Originally Posted By: Indydriver
Originally Posted By: CKN
Originally Posted By: Indydriver
Catch can technology and usage is well established in the HO V8 world having been developed in the drag racing industry. I have a catch can on my LS3 Camaro. Since GM ventilates crankcase fumes back into the fresh air intake system, it is common sense that you’re going to have oil in the intake manifold. This is why car dealers are always suggesting a “fuel system cleaning” which should include a solvent cleaning of the intake manifold to remove these oily contaminants.



This topic has been talked to death here on BITOG. For the average owner a catch-can is not cost effective. The average owner is much better off to pay for an occasional maintenance than trying to remember to empty a catch can.

A good catch can costs about the same as a single “fuel system cleaning” at a dealer. So your definitive statement of its cost effectiveness is dubious. Does the “average” owner get his fuel system cleaned on a regular basis? I doubt it.


Cost is one part of the equation. The other is the average owner emptying it. Like that's going to happen. Tell mister "Average Driver" he needs this catch can for say $300.00 (installed ballpark) and then tell him he needs to pop open the hood and empty it.

Lack of attention is why we have TPMS, "Service brake system soon" messages and other idiot lights. Again-the average owner is better off to PAY for a system cleaning.

You are right about a fuel system cleaning. It does get done when drivability problems creep up-however to give some Dealers credit-it is a recommended service at certain millage intervals.

I don’t disagree with any of this. I would only observe that getting the “average driver” to pay for a cleaning will be no easier than getting them to empty a CC every six months or so.

You mention the reason for all of this-driveability. The drag race engine builder that taught me about crankcase ventilation was concerned about that oily mist being reintroduced into the combustion chamber, suppressing the octane of the combustion mix and costing his driver a hundredth of a second. It is amazing to me that manufacturers try to get rid of it this way. I will attest that a good catch can is a very cost effective way to greatly reduce this problem.
_________________________
2017 Mazda CX3 1000 FF
2014 Camaro 2SS/RS LS3 Vert 13,000 M1
2012 Sienna 75,000 M1
2011 Accord VCMV6 75,000 M1
2007 Tahoe 130,000 M1 HM


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