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Can Marvel Mystery Oil be used reliability? #4648036
01/27/18 03:05 PM
01/27/18 03:05 PM
Joined: Jul 2017
Posts: 4
Holland
GSLex Offline OP
GSLex  Offline OP
Joined: Jul 2017
Posts: 4
Holland
Hi there,

I just bought myself a Lexus LS430 after 3 years of search with only 100.000km and every possible option. I am happy as a child!

The LS is from 12-2004 and had 7700km a year. My idea was to preventive use this MMO to clean the carbon and all the other lubrications.

And what is in fact, very very important to me, is that I want to be 100% sure that this additive cant Absolutely do no harm by any chance?
I always have very expensive problems with cars and again, I must be 1000%!!!

If you have any other suggestions please let me know. I would really appreciate that.


Last edited by wwillson; 01/27/18 11:19 PM. Reason: subject clarification
Re: Can Marvel Mystery Oil be used reliability? [Re: GSLex] #4648040
01/27/18 03:10 PM
01/27/18 03:10 PM
Joined: Nov 2006
Posts: 20,121
MA, Mittelfranken.de
Trav Offline
Trav  Offline
Joined: Nov 2006
Posts: 20,121
MA, Mittelfranken.de
At 100K Km (60K miles) I wouldn't even think of it. Change the oil on schedule and forget it. Don't kill the thing with kindness.


ASE L1, Master. Deutsch Meisterbrief.
Re: Can Marvel Mystery Oil be used reliability? [Re: GSLex] #4648059
01/27/18 03:26 PM
01/27/18 03:26 PM
Joined: Dec 2006
Posts: 18,816
Dallas,Tx USA
aquariuscsm Offline
aquariuscsm  Offline
Joined: Dec 2006
Posts: 18,816
Dallas,Tx USA
NO additives. Only use oem spec motor oil.


1996 Nissan 300ZX 5-speed,Arctic Pearl(#175 of 300)
Quaker State Ultimate Durability 10W30
2012 Honda Accord Coupe EX-L 2.4,auto,San Marino Red
Quaker State Ultimate Durability 5W20

Re: Can Marvel Mystery Oil be used reliability? [Re: GSLex] #4648103
01/27/18 04:15 PM
01/27/18 04:15 PM
Joined: Mar 2004
Posts: 20,827
Upstate NY
Donald Offline
Donald  Offline
Joined: Mar 2004
Posts: 20,827
Upstate NY
The only mystery about MMO is why people still use it. Snake oil.

Use quality synthetic oil and a PEA based fuel injection cleaner as per directions.

Avoid additives.

Nothing is 100%. You do the best you can.


2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: Can Marvel Mystery Oil be used reliability? [Re: GSLex] #4648115
01/27/18 04:32 PM
01/27/18 04:32 PM
Joined: Mar 2014
Posts: 3,316
NJ
Leo99 Offline
Leo99  Offline
Joined: Mar 2014
Posts: 3,316
NJ
Why are you worrying about a problem that has a very low probability?

Post some pictures and enjoy your new car.


Without data you're just another person with an opinion. W. E. Deming

2003 Corolla 250,000 miles
2004 Rav4 359,000 miles
2015 Camry 59,000 miles
Re: Can Marvel Mystery Oil be used reliability? [Re: GSLex] #4648120
01/27/18 04:39 PM
01/27/18 04:39 PM
Joined: Jan 2016
Posts: 820
NC
Vladiator Offline
Vladiator  Offline
Joined: Jan 2016
Posts: 820
NC
MMO is 1000% safe in proper amounts. No more than 20% of full oil capacity, and no more than 1qt/10gallons of gas in the fuel. If you keep it around these numbers - MMO will do some cleaning, I have experienced it first hand on many vehicles and am very satisfied. The MMO will burn off in the oil after a couple hundred miles, so check your oil level and keep it at proper level by refilling with MMO or motor oil.

Good luck with the vehicle! It is a great one, best car ever made.


2000 Lexus GS300-361k
1999 Lexus GS400-213k
2006 Toyota Camry-187k
2006 Toyota Highlander Hybrid-125k
2009 Scion xB-120k
2013 VW Tiguan-120k
2009 Toyota Tacoma-60k
Re: Can Marvel Mystery Oil be used reliability? [Re: GSLex] #4648126
01/27/18 04:50 PM
01/27/18 04:50 PM
Joined: Apr 2012
Posts: 5,262
MA
Wolf359 Offline
Wolf359  Offline
Joined: Apr 2012
Posts: 5,262
MA
Yeah, I wouldn't use any snake oils. What should be telling is that no manufacturer recommends it. Just change the oil on a regular schedule and do scheduled maintenance like transmission fluid changes, coolant flushes etc on time and you should be fine.

Re: Can Marvel Mystery Oil be used reliability? [Re: GSLex] #4648129
01/27/18 04:52 PM
01/27/18 04:52 PM
Joined: Nov 2008
Posts: 3,182
Oshawa, Ontario Canada
JC1 Offline
JC1  Offline
Joined: Nov 2008
Posts: 3,182
Oshawa, Ontario Canada
Originally Posted By: GSLex
I always have very expensive problems with cars and again, I must be 1000%!!!

If you have any other suggestions please let me know. I would really appreciate that.



Why do you have expensive problems? I would use quality a and filter and leave the additives out of the motor.

Last edited by JC1; 01/27/18 04:53 PM.

2015 Grand Caravan SXT Plus 5w-20 PPPP/Fram Ultra Filter
1997 Honda Civic CX 5w-30 Shell Conventional/Fram Ultra Filter
Re: Can Marvel Mystery Oil be used reliability? [Re: GSLex] #4648130
01/27/18 04:53 PM
01/27/18 04:53 PM
Joined: Jul 2005
Posts: 30,619
NY
demarpaint Offline
demarpaint  Offline
Joined: Jul 2005
Posts: 30,619
NY
IF the engine needs cleaning it will work quite well and do no harm.


God Bless Our Troops

Re: Can Marvel Mystery Oil be used reliability? [Re: GSLex] #4648151
01/27/18 05:14 PM
01/27/18 05:14 PM
Joined: Dec 2002
Posts: 42,138
New Jersey
JHZR2 Offline
JHZR2  Offline
Joined: Dec 2002
Posts: 42,138
New Jersey
MMO? Don't see much of a reason/need.

What I personally would do, given that I'd be doing the oil changes, is to do 2-3 short duration OCIs to get any old oil pilot, help clean if needed, and just to get on a fresh page. Ditto for ATF, diff oil and coolant. Id swap brake fluid too.

That way I'd personally know the status and composition of all fluids. It would be peace of mind, not much else.

Re: Can Marvel Mystery Oil be used reliability? [Re: GSLex] #4648154
01/27/18 05:16 PM
01/27/18 05:16 PM
Joined: Oct 2016
Posts: 232
California
jj51702 Offline
jj51702  Offline
Joined: Oct 2016
Posts: 232
California
Great thread title

Re: Can Marvel Mystery Oil be used reliability? [Re: Vladiator] #4648181
01/27/18 05:43 PM
01/27/18 05:43 PM
Joined: Sep 2015
Posts: 5,955
Kalifornia Kollective
BrocLuno Offline
BrocLuno  Offline
Joined: Sep 2015
Posts: 5,955
Kalifornia Kollective
Originally Posted By: Vlad_the_Russian
MMO is 1000% safe in proper amounts. No more than 20% of full oil capacity, and no more than 1qt/10gallons of gas in the fuel. If you keep it around these numbers - MMO will do some cleaning, I have experienced it first hand on many vehicles and am very satisfied. The MMO will burn off in the oil after a couple hundred miles, so check your oil level and keep it at proper level by refilling with MMO or motor oil.

Good luck with the vehicle! It is a great one, best car ever made.


+1 smile

Been using MMO for close to 50 years for some things. It does help some situations. It is safe. But a Lexus with only 60,000 miles ... Unless badly abused by previous owner, not needed. Run premium oil and by 100,000 miles it'll be clean as a pin smile

Last edited by BrocLuno; 01/27/18 05:44 PM.

Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.
Re: Can Marvel Mystery Oil be used reliability? [Re: GSLex] #4648205
01/27/18 06:06 PM
01/27/18 06:06 PM
Joined: Mar 2016
Posts: 1,249
CA
CharlieBauer Offline
CharlieBauer  Offline
Joined: Mar 2016
Posts: 1,249
CA
Firstly, congratulations on the car. It sounds like a car that you want to keep running for ever.

Change all the fluids with quality products and stay away from additives to those fluids. The fluids contain everything needed.

If the new oil gets dirty quickly, then change it at a conservative interval and observe and record how dirty and when it gets that dirty the first, second, third time. You could do a used oil analysis if you want to be sure about things. I would.

I'd be tempted to get an analysis for transmission fluid as well. Again, it's about ruling out any problems and understanding the situation to help you plan your maintenance.

Brake fluid is something that may benefit from a second flush a few weeks or months after the first one.

You should aim to exchange all fluids completely including power steering and coolant.

Look at the maintenance schedule for other things such as spark plugs.

Find a PEA fuel system cleaner (not a non PEA cleaner and not a fuel injector cleaner). Use it once now and if there is an improvement, do it again just before an oil change. Then go by feel for subsequent usage.


It ain't what you don't know that gets you into trouble. It's what you know for sure that ain't so.

- mistakenly attributed to Mark Twain
Re: Can Marvel Mystery Oil be used reliability? [Re: GSLex] #4648246
01/27/18 07:16 PM
01/27/18 07:16 PM
Joined: Mar 2008
Posts: 6,000
Michigan
ZZman Offline
ZZman  Offline
Joined: Mar 2008
Posts: 6,000
Michigan
It won't hurt anything. But if cleaning us your main goal but a oil with alot of detergents.


2003 Mercury Grand Marquis. PP HM 5w-30 and Fram Ultra
2008 Sebring Hardtop convertible. PP HM 5w-30 and Fram Ultra
2006 Kawasaki Vulcan 900 LT. Amsoil Metric 10w-40
Re: Can Marvel Mystery Oil be used reliability? [Re: GSLex] #4648258
01/27/18 07:26 PM
01/27/18 07:26 PM
Joined: Sep 2009
Posts: 16,117
OH
fdcg27 Offline
fdcg27  Offline
Joined: Sep 2009
Posts: 16,117
OH
Given your user name, do you have a GS as well, or have you had one?
What grade of oil does Toyota recommend for these engines in Europe?
A 0W-40?
I wouldn't use MMO in any decent engine personally although there are those here who aren't fools who would beg to differ.
If your car had good maintenance over its working life, it shouldn't need any engine cleaning anyway.
If you really do feel that some internal cleanup is needed, it's more likely carbon in the combustion chambers and maybe some minor deposits around the fuel injector nozzles.
This can be fixed, if it's even there, with a dose of a PEA fuel system cleaner run through a tank of fuel.
This car probably has ample fuel capacity, so a dose in half a tank might be advisable.
It sounds as though you got a very nice example of Toyota's best car.
I hope that you enjoy it and use it as it was intended to be used.
These cars have the power as well as the poise to be seriously fast runners where that's allowed.


18 Accord Hybrid FF
17 Forester 18K VME 0W-20
12 Accord LX 96K SSO 0W-20
09 Forester 95K M1HM 10W-30
01 Focus ZX3 118K PP 5W-20
96 Accord LX 104K T5 10W-30
95 318i
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