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Have you ever used a motor oil additive? Which one(s) #4923792 11/14/18 08:53 AM
Joined: Mar 2008
Posts: 6,622
Z
ZZman Offline OP
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Joined: Mar 2008
Posts: 6,622
Yes.
STP a long time ago
A teflon based one a long time ago
Engine Restore
Gunk Motor Flush
Risilone
Bars Leak engine seal repair products

Last edited by ZZman; 11/14/18 08:55 AM.

2003 Mercury Grand Marquis.
2007 Hyundai Santa Fe AWD.
2005 Toyota Avalon XLS
2006 Kawasaki Vulcan 900 LT.
Re: Have you ever used a motor oil additive? Which one(s) [Re: ZZman] #4923803 11/14/18 09:03 AM
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Donald Offline
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Yes, when I did not know better.


2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: Have you ever used a motor oil additive? Which one(s) [Re: ZZman] #4923805 11/14/18 09:03 AM
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BMWTurboDzl Offline
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No. ZERO reason to use such oil additives in modern cars.

Last edited by BMWTurboDzl; 11/14/18 09:03 AM.

“It took untold generations to get you where you are. A little gratitude might be in order. If you’re going to insist on bending the world to your way, you better have your reasons.”

435i
Re: Have you ever used a motor oil additive? Which one(s) [Re: ZZman] #4923826 11/14/18 09:22 AM
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Virtus_Probi Offline
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I used some and now wish I hadn't...I don't think they ended up doing any harm, but I also think I spent money for nothing.
Cerma
Liqui Moly MoS2
Rislone ZDDP


2014 Forester XT, 105000 miles
Last Change;
PP 5w30 d1G2
Tokyo Roki 15208AA170 filter
Re: Have you ever used a motor oil additive? Which one(s) [Re: ZZman] #4923844 11/14/18 09:38 AM
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Posts: 8,390
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andyd Offline
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Added a pint off MMO to thin 20w50 for 2 winters . Worked fine grin2


'16 Camry LE STP synth 0w20 and STP filter. the Fridge

1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline HM 0w20 and OEM filter
Thick oil is better grin2
Re: Have you ever used a motor oil additive? Which one(s) [Re: ZZman] #4923845 11/14/18 09:38 AM
Joined: Dec 2011
Posts: 1,832
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toneydoc Offline
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I sure did. STP oil treatment about 35 years ago.
It was kind of like pouring really thick honey out of a bottle.
I would not even think of using an additive now because oils are really good these days


1994 Jeep 165k NextGen 10w30
2014 Camry 41k Castrol Magnatec 0w20
2018 Jeep Cherokee 6k Pennzoil Platinum 5w30
2014 HD Ultra 49k Mobil1 15w50
Re: Have you ever used a motor oil additive? Which one(s) [Re: ZZman] #4923874 11/14/18 10:08 AM
Joined: Oct 2010
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Danh Offline
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Liqui-Moly Oil Saver to stop a front cover leak on a 3.0 Duratec. Worked very well; fixing the leak “properly” would have been an expensive proposition.

Re: Have you ever used a motor oil additive? Which one(s) [Re: ZZman] #4923879 11/14/18 10:10 AM
Joined: Jul 2005
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demarpaint Offline
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Yes. Off the top of my head spanning over 4 decades: MMO, Kreen, STP decades ago, Biotech EP, #132, MoS2 briefly, and Hyper Lube Zinc Replacement.


God Bless Our Troops

Re: Have you ever used a motor oil additive? Which one(s) [Re: ZZman] #4923880 11/14/18 10:10 AM
Joined: Apr 2014
Posts: 1,986
Bud_One Offline
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Yeppers... used "Prolong Engine Treatment" in a 1990 Mitsubishi Mirage . Car went over 300k miles. But i don't think it was due to the Prolong used.


16 Civic-QSUD 0W-20, XG7317
14 Civic-PP 0W-20, XG7317
05 Chevy 2500HD-QSUD 10W-30, PF61E
97 Accord Wagon-Napa Performance 5W-30, Napa 21334
Re: Have you ever used a motor oil additive? Which one(s) [Re: ZZman] #4923883 11/14/18 10:15 AM
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rollinpete Offline
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Yep,first one was stp oil treatment back in the late 70's I had a 68 impala burnt about a quart of oil a week (my first car). The stp as I remember did cut it down by about half and less blue smoke too . smile
Over the years iv'e tried mmo, rislone, and maybe a few others for sticky lifters all seemed to have helped some.


Pete.

97 Ford Expl.Sport 4.0 ohv 4wd 5spd 188k miles
03 Saturn Ion 2.2 L4 5spd 239k miles
PP, PPHM 50/50 5w30

Currently under the influence of oil shocked2

Re: Have you ever used a motor oil additive? Which one(s) [Re: ZZman] #4923908 11/14/18 10:41 AM
Joined: Jun 2012
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redbone3 Offline
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Molykote molybdenum engine oil additive. It quiets down the valve clatter on my '95 Miata. Don't know or care about any other claims or reduced wear, etc.


2014 Passat Wolfsburg, 1995 Miata.
Re: Have you ever used a motor oil additive? Which one(s) [Re: ZZman] #4923924 11/14/18 10:53 AM
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Posts: 2,334
Bud Offline
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Back in 70 and 80's used stp in my old MG's.


2016 Honda Pilot EX-L with NAVI.....Mobil 1 0w20 AFE and Honda OEM Filter
Re: Have you ever used a motor oil additive? Which one(s) [Re: ZZman] #4923996 11/14/18 11:50 AM
Joined: Jun 2014
Posts: 3,117
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SirTanon Offline
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In my Sable, I used MMO once or twice, replacing 1 quart of oil, for a 3k-4k mile OCI. Seemed to help clean things up a bit.

I've run a few light doses of LiquiMoly MOS2 in my Fusion. Light dose meaning 1/3 of a bottle added to oil, instead of a full bottle.
I also ran one OCI with a bottle of Lubegard BioTech in my Fusion.

In the past, I ran all sorts.. can't really say if they helped or hurt, but I wouldn't use them again unless there was some definite benefit.


2013 Nissan Altima SV - 2.5 liter/CVT - 118,000mi
2014 Nissan Altima SL - 2.5 liter/CVT - 67,000mi
2010 Ford Fusion - 274,500mi
Re: Have you ever used a motor oil additive? Which one(s) [Re: ZZman] #4924014 11/14/18 12:05 PM
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StevieC Offline
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I've tried just about everything out there and nothing seems to make a difference for the cost plus now that I know it can upset an oils performance I don't do it any longer.


'18 Caravan - 40k KM - AMSOIL SS 0w20, Fram Ultra, TC-W3 500:1
'06 Santa Fe - 535k KM (Retired)

There is no such thing as "lifetime" fluids! mad
Re: Have you ever used a motor oil additive? Which one(s) [Re: ZZman] #4924028 11/14/18 12:24 PM
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ZZman Offline OP
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I also remember using a quart of some liquid that was gray in color. I think it was graffite based. Not sure what it was called.

Last edited by ZZman; 11/14/18 12:40 PM.

2003 Mercury Grand Marquis.
2007 Hyundai Santa Fe AWD.
2005 Toyota Avalon XLS
2006 Kawasaki Vulcan 900 LT.
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