Recent Topics
Shotgun Ammo
by user52165. 12/16/18 10:24 PM
Bought a Model 3 for wifey
by JeffKeryk. 12/16/18 09:01 PM
Maybe I'm crazy.
by TRDPRO85. 12/16/18 07:50 PM
Pacer EON E-11 Synthetic Motor Fluid
by Brandon9797. 12/16/18 07:46 PM
Reuse transmission fluid??
by FFeng7. 12/16/18 07:35 PM
Amsoil SS color change
by BigShug681. 12/16/18 07:21 PM
Why don't owner's manuals specify the oil type
by OilUzer. 12/16/18 07:13 PM
belt tensioner problems
by mobilaltima. 12/16/18 06:57 PM
How bout them Patriots
by 53' Stude. 12/16/18 06:36 PM
Hand held Ham radio suggestions
by littleant. 12/16/18 05:20 PM
Ford 2.3 EB's using 87 vs 91/93 octane
by Whimsey. 12/16/18 04:48 PM
Oil analysis pump tube?
by maximum6. 12/16/18 03:56 PM
Mahle charcoal lined filter..the best!
by TiGeo. 12/16/18 03:45 PM
Diesel engines and emissions
by spasm3. 12/16/18 03:31 PM
Experiment time
by 53' Stude. 12/16/18 02:52 PM
2019 2.7L EB - Edge ST & Catch Can
by -SyN-. 12/16/18 02:51 PM
Newest Members
stantaur, Brandon9797, Landngroove, DanielH, Cpcz9382
66700 Registered Users
Who's Online Now
55 registered members (Black_Thunder, bdcardinal, ABomb369, BigShug681, 1345, anndel, 4 invisible), 1,364 guests, and 47 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics295,169
Posts4,929,073
Members66,700
Most Online2,553
Oct 27th, 2018
Donate to BITOG
Previous Thread
Next Thread
Print Thread
Hop To
So What is Oil 'Scuffing'? #4535215
10/06/17 07:15 AM
10/06/17 07:15 AM
Joined: Apr 2017
Posts: 426
Mississippi
Speak2Mountain Offline OP
Speak2Mountain  Offline OP
Joined: Apr 2017
Posts: 426
Mississippi

http://www.underhoodservice.com/gdi-syst...-intake-valves/

Since oil formulation is a work in progress, Iíll summarize by saying that oils used in GDI, particularly in turbocharged GDI (TGDI) engines, must meet much higher standards than the generic oils intended for conventional, naturally aspirated fuel-injected engines.

Oils intended for use in a GDI engine must have enough scuff resistance to protect the camshaft that drives a high-pressure mechanical fuel pump capable of developing well over 2,500 psi of fuel pressure. [u][/u][i][/i][color:#FF0000][/color]

Re: So What is Oil 'Scuffing'? [Re: Speak2Mountain] #4535217
10/06/17 07:16 AM
10/06/17 07:16 AM
Joined: Apr 2017
Posts: 426
Mississippi
Speak2Mountain Offline OP
Speak2Mountain  Offline OP
Joined: Apr 2017
Posts: 426
Mississippi
and thx ahead of time

Re: So What is Oil 'Scuffing'? [Re: Speak2Mountain] #4535221
10/06/17 07:21 AM
10/06/17 07:21 AM
Joined: Oct 2005
Posts: 11,425
PA
d00df00d Online content
d00df00d  Online Content
Joined: Oct 2005
Posts: 11,425
PA
I don't think scuff resistance means "oil scuffing" is a thing. I think it means the oil prevents scuffing in engine parts.


2008 BMW M3
Re: So What is Oil 'Scuffing'? [Re: Speak2Mountain] #4535228
10/06/17 07:38 AM
10/06/17 07:38 AM
Joined: Oct 2010
Posts: 1,829
.
Danh Offline
Danh  Offline
Joined: Oct 2010
Posts: 1,829
.
While the camshaft-driven high pressure fuel pump is an added complication, higher quality oils don't always go with DI/TGDI engines. Ford, for example, allows the use of conventional engine oils in its DI/TGDI engines.

Even GM's new Dexos1 Gen 2 spec seems aimed more at preventing LSPI than accommodating whatever extra stress a high pressure fuel pump places on an engine oil.

Re: So What is Oil 'Scuffing'? [Re: Speak2Mountain] #4535290
10/06/17 09:36 AM
10/06/17 09:36 AM
Joined: May 2006
Posts: 4,045
Central Wisconsin
dwendt44 Offline
dwendt44  Offline
Joined: May 2006
Posts: 4,045
Central Wisconsin
IS the oiling system even part of the
high pressure fuel pump?


There's no such thing as:
Too big of a battery,
Too large of a gas tank,
or too loud of a horn,
or too bright headlights.
Re: So What is Oil 'Scuffing'? [Re: dwendt44] #4535302
10/06/17 09:56 AM
10/06/17 09:56 AM
Joined: Apr 2017
Posts: 426
Mississippi
Speak2Mountain Offline OP
Speak2Mountain  Offline OP
Joined: Apr 2017
Posts: 426
Mississippi
I know right?

Re: So What is Oil 'Scuffing'? [Re: Speak2Mountain] #4535314
10/06/17 10:21 AM
10/06/17 10:21 AM
Joined: May 2009
Posts: 12,283
N.H, U.S.A.
ARCOgraphite Offline
ARCOgraphite  Offline
Joined: May 2009
Posts: 12,283
N.H, U.S.A.


2014 Nissan Rogue S CVT, OC#10 47272mi-QSUD10W30+5w20 Toughguard Filter; '17 Subaru Crosstrek CVT OC#2 ?? mi-SOA/Idemitsu 0w20 + SOA Filter
Re: So What is Oil 'Scuffing'? [Re: ARCOgraphite] #4535576
10/06/17 03:36 PM
10/06/17 03:36 PM
Joined: Oct 2005
Posts: 11,425
PA
d00df00d Online content
d00df00d  Online Content
Joined: Oct 2005
Posts: 11,425
PA
^^ Wow!


2008 BMW M3
Re: So What is Oil 'Scuffing'? [Re: Speak2Mountain] #4535602
10/06/17 04:15 PM
10/06/17 04:15 PM
Joined: Jul 2010
Posts: 19,309
PNW
ZeeOSix Offline
ZeeOSix  Offline
Joined: Jul 2010
Posts: 19,309
PNW
Quote:
Oils intended for use in a GDI engine must have enough scuff resistance to protect the camshaft that drives a high-pressure mechanical fuel pump capable of developing well over 2,500 psi of fuel pressure.

I'd think they would use some kind of roller setup on the high pressure fuel pump if the stress is high on the actuating lobe.

Re: So What is Oil 'Scuffing'? [Re: Speak2Mountain] #4535633
10/06/17 05:01 PM
10/06/17 05:01 PM
Joined: Aug 2003
Posts: 13,146
NE,Ohio
Rand Online content
Rand  Online Content
Joined: Aug 2003
Posts: 13,146
NE,Ohio
there is no "oil scuffing"

oil needs to prevent scuffing wear


2019 Jeep Cherokee Trailhawk 2.0T
Re: So What is Oil 'Scuffing'? [Re: Speak2Mountain] #4537764
10/09/17 07:40 AM
10/09/17 07:40 AM
Joined: May 2009
Posts: 12,283
N.H, U.S.A.
ARCOgraphite Offline
ARCOgraphite  Offline
Joined: May 2009
Posts: 12,283
N.H, U.S.A.
Agree. Just poor engine design or poor materials.


2014 Nissan Rogue S CVT, OC#10 47272mi-QSUD10W30+5w20 Toughguard Filter; '17 Subaru Crosstrek CVT OC#2 ?? mi-SOA/Idemitsu 0w20 + SOA Filter
Re: So What is Oil 'Scuffing'? [Re: Speak2Mountain] #4537787
10/09/17 08:29 AM
10/09/17 08:29 AM
Joined: Oct 2015
Posts: 2,809
Balearic Islands , Spain
FordCapriDriver Offline
FordCapriDriver  Offline
Joined: Oct 2015
Posts: 2,809
Balearic Islands , Spain
A liquid cannot suffer from scuffing.
Simple as that.


1975 Ford Capri II Ghia 3000 V6, - Shell Helix HX3 20W-50 w/ 20% Rimula R4X 15W-40 HDEO.

1988 Ford Escort Mk4 Xr3i Cabrio, - Shell Rimula R4X 15W-40, w/ 30% Helix 3 20W-50.

Finnish expat in Spain.
Re: So What is Oil 'Scuffing'? [Re: FordCapriDriver] #4537802
10/09/17 08:55 AM
10/09/17 08:55 AM
Joined: Sep 2010
Posts: 7,508
Texas & Global
4WD Offline
4WD  Offline
Joined: Sep 2010
Posts: 7,508
Texas & Global
Oil scuffing is when you bash someone elseís choice in oil to make yourself feel superior


2018 Chevy 1500 Z71 4WD
2017 Chevy Tahoe LT 4WD
2014 Fusion Hybrid Titanium
2013 Cruze LTZ - RS Turbo
Re: So What is Oil 'Scuffing'? [Re: Speak2Mountain] #4537816
10/09/17 09:08 AM
10/09/17 09:08 AM
Joined: Jul 2017
Posts: 1,292
Douglas County, Colorado
bigj_16 Offline
bigj_16  Offline
Joined: Jul 2017
Posts: 1,292
Douglas County, Colorado
The upside to oil scuffing, is that when it happens, because it is liquid, it will buff right out. smile

Re: So What is Oil 'Scuffing'? [Re: bigj_16] #4537865
10/09/17 09:51 AM
10/09/17 09:51 AM
Joined: Sep 2010
Posts: 7,508
Texas & Global
4WD Offline
4WD  Offline
Joined: Sep 2010
Posts: 7,508
Texas & Global
True. ÖOr it goes out to the drain pan Ö laugh


2018 Chevy 1500 Z71 4WD
2017 Chevy Tahoe LT 4WD
2014 Fusion Hybrid Titanium
2013 Cruze LTZ - RS Turbo

BOB IS THE OIL GUY® Powered by UBB.threads™