Recent Topics
Does oil go bad?
by TallerTrucker
08/14/18 11:43 PM
OBDII Scanner
by JeffKeryk
08/14/18 11:08 PM
Automatic headlights not working after replacing bulbs
by mclasser
08/14/18 08:34 PM
Fluid Film Rustproofing Video
by Warstud
08/14/18 08:33 PM
Cloyes timing sets any good?
by FastLane
08/14/18 08:08 PM
Free AMC Movie Theatre Beverage
by Recalculating
08/14/18 07:53 PM
ABS Problem... 2001 Honda Odyssey
by DeafBrad
08/14/18 07:05 PM
6 qt of 5w2- Penzoil platinum for $12
by danez_yoda
08/14/18 06:43 PM
Tire Plug Experts Advice
by jrvn
08/14/18 06:41 PM
What insurance do you need to drive for Lyft/Uber?
by JimmyJohns
08/14/18 06:18 PM
Name a good alternative to Kendal GT1
by Vern_in_IL
08/14/18 05:23 PM
Any other car audio nuts here?
by cwilliamsws6
08/14/18 04:14 PM
Quaker State Advanced Durability Rollback at Wal Mart (CDN)
by irv
08/14/18 03:49 PM
Digital Valve Actuation
by Sluggo0018
08/14/18 02:31 PM
:::Why Ford Made An INCREDIBLE Blunder (RE 2019 Ford Ranger)
by NDL
08/14/18 02:29 PM
2 Minute EASY Headlight Restoration
by NHHEMI
08/14/18 01:57 PM
Is this wear on new rotors and pads normal?
by JimmyJohns
08/14/18 01:45 PM
Barn Find
by Snagglefoot
08/14/18 01:32 PM
Air Filter Hole
by Davejam
08/14/18 01:13 PM
Home lighting help
by Klutch9
08/14/18 12:40 PM
Newest Members
dumasarok, amribakri, JimFisher, aerowill, bpp
65711 Registered Users
Who's Online
43 registered (CKN, brages, 1JZ_E46, ctechbob, Corolla2014, carlprop, 3 invisible), 1003 Guests and 31 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
65711 Members
67 Forums
288699 Topics
4815679 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Page 1 of 2 1 2 >
Topic Options
#4753128 - 05/10/18 02:55 PM Does diesel oil do more cleaning?
maverickfhs Offline


Registered: 12/28/16
Posts: 2113
Loc: VA
Maybe all of my threads are going to be towards diesel oil, since I plan to change oil in the Civic soon. thumbsup

Do oils like PP5W30 Euro AV do more cleaning than any other gasoline oil? For short tripping and 3K miles, would it clean anything or cause harm or no noticeable difference for a car like Civic?

I have no qualms using it, based on the thread I posted: https://bobistheoilguy.com/forums/ubbthreads.php/topics/4620526#Post4620526

Thanks for any advice and help.





_________________________
2006 Civic EX 202K/AT
2006 Acura TSX 180K/AT

Top
#4753158 - 05/10/18 03:36 PM Re: Does diesel oil do more cleaning? [Re: maverickfhs]
Char Baby Offline


Registered: 05/25/05
Posts: 10175
Loc: ROCHESTER, NY
I think that diesel oils have a higher level(PPM) of Calcium & Magnesium but, others will chime in with more info.
_________________________
"Retired"
-----------------------------------

'06 Mazda 3i 2.0L-FOR SALE NOW!
********************************
'80 Firebird FORMULA V8/4bbl-purchased "NEW"
'15 Nissan Altima 2.5 SV
'15 Honda Civic LX(17K)

Top
#4753165 - 05/10/18 03:44 PM Re: Does diesel oil do more cleaning? [Re: maverickfhs]
Imp4 Offline


Registered: 04/06/18
Posts: 337
Loc: Somewhere in time
Define cleaning.
Define the measurement of said cleaning.
Provide a method for measuring said cleaning action.
Report back with repeatable test protocol and verifiable, repeatable results.
Discuss.

Or..... speculate.....
_________________________
2001 Mitsubishi Galant 2.4 - 157k+
Grandma's creampuff...

Top
#4753169 - 05/10/18 03:50 PM Re: Does diesel oil do more cleaning? [Re: maverickfhs]
1JZ_E46 Online   content


Registered: 04/04/16
Posts: 1311
Loc: Oregon
I think all modern oils do a good job at cleaning with a shortened OCI. Thereís really no way to say which oil cleans better. All you will find is opinions.
_________________________
2007 BMW X5 4.8i, 108k: M1 10W-30 HM, Mann
2012 Mini Cooper, 48k: Castrol 0W-30, Mann (for sale)
2016 Mini Countryman S ALL4, 20k: Castrol 0W-30, Mann

Top
#4753184 - 05/10/18 04:10 PM Re: Does diesel oil do more cleaning? [Re: maverickfhs]
Dyusik Offline


Registered: 09/26/14
Posts: 2072
Loc: US-WA
My understanding was always that because diesels are sooty, the diesel rated oil has to be better at dispersing vs pcmo. I'm sure people that know can correct my assumptions.
_________________________
95 Cherokee 190K DELO 10W30,XG8
07 IS250 98K Napa 10w30,FULL
04 YZF-R1 19K DELO 15w40,XG7317
99 HD XL1200S 18K VR1 20w50,1515
14 RX450h 32k PP MIX,NAPAG

Top
#4753195 - 05/10/18 04:19 PM Re: Does diesel oil do more cleaning? [Re: maverickfhs]
CT8 Offline


Registered: 10/09/14
Posts: 11480
Loc: Idaho
What are you going to be cleaning? Does it need to be cleaned.
_________________________
"Don't let your preconceived notions get in the way of facts."
Geoff Metcalf

Top
#4753244 - 05/10/18 05:28 PM Re: Does diesel oil do more cleaning? [Re: maverickfhs]
Dave1027 Offline


Registered: 05/02/18
Posts: 77
Loc: California
Many of the guys on the BMW forum swear by Rotella T6 (diesel oil) to clean out the ring lands which reduces oil burning. I always thought it was due to the high magnesium content.

Top
#4753346 - 05/10/18 07:05 PM Re: Does diesel oil do more cleaning? [Re: maverickfhs]
SubieRubyRoo Offline


Registered: 05/14/12
Posts: 1251
Loc: Winchester, Indiana
NONE of the major oils will put anything on their oils that say they "clean" dirty engines.

Pennzoil Ultra Platinum & Platinum say they "keep pistons xx% cleaner" than the standard.
Castrol Ultraclean GTX says it provides "50% more sludge protection"

There are other examples. Only a solvent can clean. Good oils can only reduce the amount of junk that gets deposited into the engine.

Top
#4753354 - 05/10/18 07:10 PM Re: Does diesel oil do more cleaning? [Re: maverickfhs]
jayg Offline


Registered: 10/04/12
Posts: 1211
Loc: Rabbit Creek, Alaska
For 3k mile intervals in a Civic, use the cheapest name brand conventional oil on clearance. I pay for expensive diesel oil only when I have an application that I have to use it for DPFS and soot. You don't have that so save your money.
_________________________
Ď17 Ram 1500 Ecodiesel- RT6 5w40
'15 Prius C Napa 0w20
'73 240Z 10w30 VWC from '73
'73 Triumph Tiger 750 M1 5w50
'67 BSA 441 Victor Special M1 5w50





Top
#4753425 - 05/10/18 08:05 PM Re: Does diesel oil do more cleaning? [Re: maverickfhs]
JeffKeryk Online   content


Registered: 01/09/10
Posts: 364
Loc: Los Gatos, CA
From:
http://www.machinerylubrication.com/Read/28576/comparing-gasoline-diesel-engine-oils-

Diesel engine oil has more additives per volume. The most prevalent are overbase detergent additives. This additive has several jobs, but the main ones are to neutralize acids and clean. Diesel engines create a great deal more soot and combustion byproducts.

Top
#4753454 - 05/10/18 08:24 PM Re: Does diesel oil do more cleaning? [Re: SubieRubyRoo]
1JZ_E46 Online   content


Registered: 04/04/16
Posts: 1311
Loc: Oregon
Originally Posted By: SubieRubyRoo
NONE of the major oils will put anything on their oils that say they "clean" dirty engines.

Pennzoil Ultra Platinum & Platinum say they "keep pistons xx% cleaner" than the standard.
Castrol Ultraclean GTX says it provides "50% more sludge protection"

There are other examples. Only a solvent can clean. Good oils can only reduce the amount of junk that gets deposited into the engine.


Iíve seen oil filters cut open on a dirty engine after short synthetic OCIs. There is certainly some cleaning going on. Lots of black grit.
_________________________
2007 BMW X5 4.8i, 108k: M1 10W-30 HM, Mann
2012 Mini Cooper, 48k: Castrol 0W-30, Mann (for sale)
2016 Mini Countryman S ALL4, 20k: Castrol 0W-30, Mann

Top
#4753623 - 05/10/18 11:17 PM Re: Does diesel oil do more cleaning? [Re: 1JZ_E46]
clinebarger Offline


Registered: 12/19/13
Posts: 2072
Loc: Fort Worth, Texas
Originally Posted By: 1JZ_E46


Iíve seen oil filters cut open on a dirty engine after short synthetic OCIs. There is certainly some cleaning going on. Lots of black grit.


But a "dirty engine" has 1000 times more black grit sludge still in the engine....
_________________________
2001 Chevy Camaro L92/4L80E
2006 Chevy 2500HD LBZ/Allison 1000
2010 Toyota Corolla 2ZR-FE/Auto

Top
#4753628 - 05/10/18 11:28 PM Re: Does diesel oil do more cleaning? [Re: maverickfhs]
BrocLuno Offline


Registered: 09/06/15
Posts: 5687
Loc: Kalifornia Kollective
Port injected Civic with how many miles and what service history?

You want clean, put a full can of BG109 in there for teh last 100 miles and change the oil. Or, put 5 ounces of SeaFoam in the crankcase for a 20 minute gentle drive around the block and change the oil. Either will clean stuff no basic oil will touch.

But what are we trying to clean? Varnish? Sludge? Something else ...
_________________________
Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.

Top
#4753663 - 05/11/18 01:01 AM Re: Does diesel oil do more cleaning? [Re: maverickfhs]
FordCapriDriver Offline


Registered: 10/22/15
Posts: 2509
Loc: Balearic Islands , Spain
HDEOs do have a healthier dose of dispersants, since when used in Diesel engines they are pumped ful of soot they have to keep in suspension.
I am using a HDEO in my Escort to hopefully help clean it up, the previous owner did not change the oil regularly, although i intend to keep using HDEO for the high Zddp and the 15W-40 viscosity is perfect for the CVH with over 100k miles.

Rocker cover gasket change 09-05-2018 by Argentum Enim in Sempiternum, en Flickr

Took the valve cover off the other day to change the rocker cover gasket, the valvetrain itself was not too bad the but the underside of the rocker cover was caked in oil deposits and the PCV outlet was clogged.
_________________________
1975 Ford Capri II Ghia 3000 V6, - Shell Helix HX3 20W-50 w/ some Rimula R4X 15W-40 HDEO.

1988 Ford Escort Mk4 Xr3i Cabrio, - Comma X-Flow XS 10W-40.

Top
#4753697 - 05/11/18 03:32 AM Re: Does diesel oil do more cleaning? [Re: JeffKeryk]
SonofJoe Offline


Registered: 07/23/16
Posts: 1052
Loc: Europe
Originally Posted By: JeffKeryk
From:
http://www.machinerylubrication.com/Read/28576/comparing-gasoline-diesel-engine-oils-

Diesel engine oil has more additives per volume. The most prevalent are overbase detergent additives. This additive has several jobs, but the main ones are to neutralize acids and clean. Diesel engines create a great deal more soot and combustion byproducts.



It is received wisdom that overbased metallic detergents carry out a 'cleaning' function in engine oil. In my experience, this just isn't true.

To understand what an overbased detergent actually is, try and imagine a beaker which contains one third powdered chalk (calcium carbonate) and two thirds of mineral base oil. The resultant gritty, opaque, gooey mess might not be something you'll want to put into your engine if your objective is keeping things clean! It would also block your oil filter in minutes.

Now imagine you can remove from the beaker a bit of the base oil, and replace it with some 'neutral' calcium alkyl sulphonate (often referred to as 'soap') which, through the magic of colloidal dispersion, breaks up those particles of calcium carbonate to the point where they're soooooooooooo small, the mixture becomes transparent. That's essentially what an overbased detergent is.

The primary purpose of the calcium carbonate in detergent in to neutralise acids (just imagine putting citric acid in your kettle to react with limescale...same thing!). The primary purpose of the calcium alkyl sulphonate is to colloidally disperse that inorganic base (hence the term 'overbased'). Now some folks will tell you that the same calcium alkyl sulphonate will keep those acid-base reaction products dispersed in the oil and help prevent deposits dropping out. I think at one point this was probably true but in today's environment, I'm not sure it is and if it still is, then it's a very minor effect.

Hope that helps...




Edited by SonofJoe (05/11/18 03:33 AM)

Top
Page 1 of 2 1 2 >