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Hdeo vs ultra platinum to remove sludge ?? #4515379
09/13/17 05:05 PM
09/13/17 05:05 PM
Joined: Nov 2010
Posts: 103
CA
wantboost Offline OP
wantboost  Offline OP
Joined: Nov 2010
Posts: 103
CA
Which will work better ?

Re: Hdeo vs ultra platinum to remove sludge ?? [Re: wantboost] #4515394
09/13/17 05:23 PM
09/13/17 05:23 PM
Joined: Jun 2014
Posts: 2,444
Phoenix, Arizona - USA
SirTanon Offline
SirTanon  Offline
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Posts: 2,444
Phoenix, Arizona - USA
Seems to me that both should work quite well.. but that might depend on the severity of the sludge. If it's bad enough I would be concerned about either cleaning "too well" and putting too much into circulation.

In my mind, this also depends on the car/engine you have in mind. If the car calls for lighter-weight oil, then I don't know if HDEO is necessarily your best choice, because those are all heavier-weight oils, which would mean that PUP would be the best choice.

All other things being equal, I'd probably just go with a decent SM/SN-rated HDEO and save money.


2010 Ford Fusion SE - 2.5 liter/6F35 Trans - 261,000mi
2014 Nissan Altima SL - 2.5 liter/CVT - 56,000mi
Re: Hdeo vs ultra platinum to remove sludge ?? [Re: wantboost] #4515400
09/13/17 05:32 PM
09/13/17 05:32 PM
Joined: Apr 2017
Posts: 929
SF BAY AREA, CA
dogememe Offline
dogememe  Offline
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Posts: 929
SF BAY AREA, CA
Just use slightly shorter OCIs of normal conventional oil a few times and you'll be fine.


2007 Crown Vic P71 4.6 ~126K Miles, Royal Purple HPS 5W-30, Royal Purple Filter, Daily Driver, 5K OCIs.
2010 Escape FWD 2.5 ~84K Miles, Castrol Edge EP 5W-30, Wix Filter, Rented on Turo, 10-15K OCIs.
Re: Hdeo vs ultra platinum to remove sludge ?? [Re: wantboost] #4515403
09/13/17 05:36 PM
09/13/17 05:36 PM
Joined: Nov 2010
Posts: 103
CA
wantboost Offline OP
wantboost  Offline OP
Joined: Nov 2010
Posts: 103
CA
Car calls for 5w30 dexos

Last edited by wantboost; 09/13/17 05:36 PM.
Re: Hdeo vs ultra platinum to remove sludge ?? [Re: wantboost] #4515405
09/13/17 05:43 PM
09/13/17 05:43 PM
Joined: Mar 2013
Posts: 4,758
The Midwest
skyactiv Offline
skyactiv  Offline
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Posts: 4,758
The Midwest


Wife: 15' Audi A4 quattro 6 speed manual
Me: 13' VW GTI 3 door 6 speed manual
Re: Hdeo vs ultra platinum to remove sludge ?? [Re: wantboost] #4515409
09/13/17 05:50 PM
09/13/17 05:50 PM
Joined: May 2012
Posts: 1,345
Winchester, Indiana
SubieRubyRoo Online happy
SubieRubyRoo  Online Happy
Joined: May 2012
Posts: 1,345
Winchester, Indiana
Dump a quart of MMO in while the engine is warm, and let it idle for 10-15 minutes in the driveway. Then change oil and filter to PUP and run about 5k. Use a good filter to keep the gunk from circulating.

Re: Hdeo vs ultra platinum to remove sludge ?? [Re: SubieRubyRoo] #4515425
09/13/17 06:02 PM
09/13/17 06:02 PM
Joined: Jun 2014
Posts: 2,444
Phoenix, Arizona - USA
SirTanon Offline
SirTanon  Offline
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Posts: 2,444
Phoenix, Arizona - USA
Originally Posted By: SubieRubyRoo
Dump a quart of MMO in while the engine is warm, and let it idle for 10-15 minutes in the driveway. Then change oil and filter to PUP and run about 5k. Use a good filter to keep the gunk from circulating.


Heck if the oil is a bit low on the current fill, just top it off with up to 1qt of MMO and drive the rest of the OCI with it in. I ran an entire OCI in my 2003 Mercury Sable (3.0 Duratec) when I had it, with 1QT of MMO, and the rest 5w30 Valvoline MaxLife, and it did a great job of cleaning it up over a 6000 mile OCI.


2010 Ford Fusion SE - 2.5 liter/6F35 Trans - 261,000mi
2014 Nissan Altima SL - 2.5 liter/CVT - 56,000mi
Re: Hdeo vs ultra platinum to remove sludge ?? [Re: wantboost] #4515427
09/13/17 06:02 PM
09/13/17 06:02 PM
Joined: Nov 2010
Posts: 103
CA
wantboost Offline OP
wantboost  Offline OP
Joined: Nov 2010
Posts: 103
CA
Ok thx
I run wix cartridge filters .

Re: Hdeo vs ultra platinum to remove sludge ?? [Re: wantboost] #4515428
09/13/17 06:06 PM
09/13/17 06:06 PM
Joined: May 2012
Posts: 1,345
Winchester, Indiana
SubieRubyRoo Online happy
SubieRubyRoo  Online Happy
Joined: May 2012
Posts: 1,345
Winchester, Indiana
Yeah, Sir, MMO has a very long (and checkered, if you believe some of the naysayers here) and proven history; my dad had a 79 Chevy van with the 350 that leaked a bit, but didn't really 'use' any oil. It got an oil change roughly once a year (really just a filter change due to leaks smile ) and he would dump a quart in probably every six months while mixing with makeup oil. MMO in the gas too. One quart to a full tank, once per calendar quarter.

He sold it with somewhere north of 350k miles, and even though the van had rusted away around it, the engine still ran well and just had a very light blue haze on cold startup. Amazing how that thing lasted with no real TLC...

Re: Hdeo vs ultra platinum to remove sludge ?? [Re: wantboost] #4515466
09/13/17 06:37 PM
09/13/17 06:37 PM
Joined: Sep 2009
Posts: 16,008
OH
fdcg27 Offline
fdcg27  Offline
Joined: Sep 2009
Posts: 16,008
OH
If you have actual sludge and not merely the idea that you do, short drains for a while are in order and will clean up the engine.
For short drains, should you use a cheap oil or an expensive one?
Easy question with an easy answer.


17 Forester 12K MSS 0W-20
12 Accord LX 92K PP 5W-20
09 Forester 95K M1HM 10W-30
01 Focus ZX3 118K PP 5W-20
96 Accord LX 104K T5 10W-30
95 318i
Re: Hdeo vs ultra platinum to remove sludge ?? [Re: wantboost] #4515544
09/13/17 08:07 PM
09/13/17 08:07 PM
Joined: Oct 2014
Posts: 11,839
Idaho
CT8 Offline
CT8  Offline
Joined: Oct 2014
Posts: 11,839
Idaho
How much sludge needs to be removed.


2015 Ford F150 2.7
2018 Ford F350 6.2
Re: Hdeo vs ultra platinum to remove sludge ?? [Re: wantboost] #4515552
09/13/17 08:14 PM
09/13/17 08:14 PM
Joined: May 2012
Posts: 1,345
Winchester, Indiana
SubieRubyRoo Online happy
SubieRubyRoo  Online Happy
Joined: May 2012
Posts: 1,345
Winchester, Indiana
One question I have for the 'short OCI for the sludge win' crowd: it's universally acknowledged that fresh oils DO slightly increase wear rates because of the tribological magic that goes on at the metal-to-additive interface. Granted, the increase is in most cases small, but it is there. So other than frequent filter changes, why would you pick multiple OCIs over one longer cleaning period with something like MMO?

Re: Hdeo vs ultra platinum to remove sludge ?? [Re: SubieRubyRoo] #4515571
09/13/17 08:41 PM
09/13/17 08:41 PM
Joined: Dec 2005
Posts: 9,891
Upper Midwest
kschachn Online content
kschachn  Online Content
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Posts: 9,891
Upper Midwest
Originally Posted By: SubieRubyRoo
One question I have for the 'short OCI for the sludge win' crowd: it's universally acknowledged that fresh oils DO slightly increase wear rates because of the tribological magic that goes on at the metal-to-additive interface. Granted, the increase is in most cases small, but it is there. So other than frequent filter changes, why would you pick multiple OCIs over one longer cleaning period with something like MMO?

Actually the idea of new oils slightly increasing wear rates is not well supported and has been discussed here many times, here is one post (and a thread) describing the problems with that:

https://bobistheoilguy.com/forums/ubbthreads.php/topics/4439068/Re:_Should_I_leave_a_little_us#Post4439068

And also there is little proof that any additive including MMO will remove actual sludge, if present.



1994 BMW 530i, 228K
1996 Honda Accord, 263K
1999 Toyota Sienna, 400K
2000 Toyota ECHO, 271K
Re: Hdeo vs ultra platinum to remove sludge ?? [Re: wantboost] #4515575
09/13/17 08:44 PM
09/13/17 08:44 PM
Joined: Dec 2005
Posts: 9,891
Upper Midwest
kschachn Online content
kschachn  Online Content
Joined: Dec 2005
Posts: 9,891
Upper Midwest
Originally Posted By: wantboost
Which will work better ?

Please post pictures of the actual sludge so we can see how bad it is, and what kind of sludge.


1994 BMW 530i, 228K
1996 Honda Accord, 263K
1999 Toyota Sienna, 400K
2000 Toyota ECHO, 271K
Re: Hdeo vs ultra platinum to remove sludge ?? [Re: SubieRubyRoo] #4515592
09/13/17 09:00 PM
09/13/17 09:00 PM
Joined: Jan 2017
Posts: 1,139
USA
ArcticDriver Offline
ArcticDriver  Offline
Joined: Jan 2017
Posts: 1,139
USA
Originally Posted By: SubieRubyRoo
One question I have for the 'short OCI for the sludge win' crowd: it's universally acknowledged that fresh oils DO slightly increase wear rates because of the tribological magic that goes on at the metal-to-additive interface. Granted, the increase is in most cases small, but it is there. So other than frequent filter changes, why would you pick multiple OCIs over one longer cleaning period with something like MMO?


How does the MMO affect the metal-to-additive interface?

Thanks


Multiple Diesel and Gasoline vehicles
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