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Pat Goss Opine on Blowby on DI Engines #4552106
10/23/17 03:30 PM
10/23/17 03:30 PM
Joined: Apr 2017
Posts: 402
Mississippi
Speak2Mountain Offline OP
Speak2Mountain  Offline OP
Joined: Apr 2017
Posts: 402
Mississippi

Re: Pat Goss Opine on Blowby on DI Engines [Re: Speak2Mountain] #4552152
10/23/17 04:22 PM
10/23/17 04:22 PM
Joined: Jun 2002
Posts: 2,706
Southeastern USA
FowVay Offline
FowVay  Offline
Joined: Jun 2002
Posts: 2,706
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.


Re: Pat Goss Opine on Blowby on DI Engines [Re: Speak2Mountain] #4552154
10/23/17 04:24 PM
10/23/17 04:24 PM
Joined: Apr 2012
Posts: 9,387
Kendall, FL
wemay Offline
wemay  Offline
Joined: Apr 2012
Posts: 9,387
Kendall, FL
The MotorWeek (Goss' Garage video) discussed April of 2016...

https://bobistheoilguy.com/forums/ubbthreads.php/topics/4068874/1


'18 KIA Sportage LX AWD 2.4L: MSS 10w30
'13 Hyundai Santa Fe Sport 2.0T: EDGE 5w30
Re: Pat Goss Opine on Blowby on DI Engines [Re: Speak2Mountain] #4552173
10/23/17 04:54 PM
10/23/17 04:54 PM
Joined: Oct 2014
Posts: 3,902
Utah
CKN Offline
CKN  Offline
Joined: Oct 2014
Posts: 3,902
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?

Last edited by CKN; 10/23/17 04:54 PM.
Re: Pat Goss Opine on Blowby on DI Engines [Re: CKN] #4552179
10/23/17 04:58 PM
10/23/17 04:58 PM
Joined: Aug 2011
Posts: 9,560
Boston, MA
HerrStig Offline
HerrStig  Offline
Joined: Aug 2011
Posts: 9,560
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.

Last edited by HerrStig; 10/23/17 04:58 PM.
Re: Pat Goss Opine on Blowby on DI Engines [Re: Speak2Mountain] #4552207
10/23/17 05:20 PM
10/23/17 05:20 PM
Joined: Sep 2010
Posts: 7,485
S California
OneEyeJack Offline
OneEyeJack  Offline
Joined: Sep 2010
Posts: 7,485
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.

Re: Pat Goss Opine on Blowby on DI Engines [Re: HerrStig] #4552209
10/23/17 05:22 PM
10/23/17 05:22 PM
Joined: Oct 2014
Posts: 3,902
Utah
CKN Offline
CKN  Offline
Joined: Oct 2014
Posts: 3,902
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

Re: Pat Goss Opine on Blowby on DI Engines [Re: Speak2Mountain] #4552223
10/23/17 05:31 PM
10/23/17 05:31 PM
Joined: Dec 2014
Posts: 1,437
NY, USA, etc.
oilpsi2high Offline
oilpsi2high  Offline
Joined: Dec 2014
Posts: 1,437
NY, USA, etc.
Don’t 5th gen Camaro have SFI?

Re: Pat Goss Opine on Blowby on DI Engines [Re: Speak2Mountain] #4552268
10/23/17 06:11 PM
10/23/17 06:11 PM
Joined: Mar 2011
Posts: 2,197
Indiana
Indydriver Offline
Indydriver  Offline
Joined: Mar 2011
Posts: 2,197
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.

Last edited by Indydriver; 10/23/17 06:16 PM.

2014 Camaro 2SS/RS LS3 Vert 14,000 M1
2012 Sienna 79,000 M1
2007 Tahoe 140,000 PP

Re: Pat Goss Opine on Blowby on DI Engines [Re: Indydriver] #4552278
10/23/17 06:15 PM
10/23/17 06:15 PM
Joined: Oct 2014
Posts: 3,902
Utah
CKN Offline
CKN  Offline
Joined: Oct 2014
Posts: 3,902
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.

Re: Pat Goss Opine on Blowby on DI Engines [Re: CKN] #4552284
10/23/17 06:19 PM
10/23/17 06:19 PM
Joined: Mar 2011
Posts: 2,197
Indiana
Indydriver Offline
Indydriver  Offline
Joined: Mar 2011
Posts: 2,197
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.

Last edited by Indydriver; 10/23/17 06:21 PM.

2014 Camaro 2SS/RS LS3 Vert 14,000 M1
2012 Sienna 79,000 M1
2007 Tahoe 140,000 PP

Re: Pat Goss Opine on Blowby on DI Engines [Re: Speak2Mountain] #4552287
10/23/17 06:21 PM
10/23/17 06:21 PM
Joined: Aug 2008
Posts: 18,619
Ontario, Canada
StevieC Offline
StevieC  Offline
Joined: Aug 2008
Posts: 18,619
Ontario, Canada
popcorn Here we go...


'18 Highlander - AMSOIL SS 0w20 / ATF / Severe Gear
'06 Santa Fe - 535,000km AMSOIL SS 0w30 / ATF (R.I.P)
Re: Pat Goss Opine on Blowby on DI Engines [Re: Indydriver] #4552292
10/23/17 06:26 PM
10/23/17 06:26 PM
Joined: Oct 2014
Posts: 3,902
Utah
CKN Offline
CKN  Offline
Joined: Oct 2014
Posts: 3,902
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.

Last edited by CKN; 10/23/17 06:30 PM.
Re: Pat Goss Opine on Blowby on DI Engines [Re: StevieC] #4552320
10/23/17 06:48 PM
10/23/17 06:48 PM
Joined: Mar 2011
Posts: 2,197
Indiana
Indydriver Offline
Indydriver  Offline
Joined: Mar 2011
Posts: 2,197
Indiana
Originally Posted By: StevieC
popcorn Here we go...

Where we going?


2014 Camaro 2SS/RS LS3 Vert 14,000 M1
2012 Sienna 79,000 M1
2007 Tahoe 140,000 PP

Re: Pat Goss Opine on Blowby on DI Engines [Re: CKN] #4552333
10/23/17 06:59 PM
10/23/17 06:59 PM
Joined: Mar 2011
Posts: 2,197
Indiana
Indydriver Offline
Indydriver  Offline
Joined: Mar 2011
Posts: 2,197
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.


2014 Camaro 2SS/RS LS3 Vert 14,000 M1
2012 Sienna 79,000 M1
2007 Tahoe 140,000 PP

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