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#4799040 - 06/27/18 04:30 PM What's the deal on Lucas Heavy Duty Oil Stabalizer
AnonOIl Offline


Registered: 10/01/17
Posts: 37
Loc: GA, USA
Hey everyone. I am looking for an additive to help reduce the amount of oil my engine consumes. I drive a 2004 Toyota Highlander with just under 200k miles. I have used Lucas Heavy Duty Oil Stabalizer in the past, girlfriends dad is a mechanic and swears by the stuff to help reduce consumption. And truth be told it really does make a difference, in a 5K OCI I have to add maybe 1-1.5 quarts total. Used to be a lot worse. But reading some on here a lot of people are saying the stuff is bad? What is the deal and why? What is a good alternative? Thanks so much, have a great day.

PS: PCV valve was changed 10k ago so that is not a concern for consumption

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#4799059 - 06/27/18 04:46 PM Re: What's the deal on Lucas Heavy Duty Oil Stabalizer [Re: AnonOIl]
CT8 Offline


Registered: 10/09/14
Posts: 11219
Loc: Idaho
It thickens the oil a bit some people recommend to use a thicker oil instead. What oil viscosity are you running now?
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#4799060 - 06/27/18 04:46 PM Re: What's the deal on Lucas Heavy Duty Oil Stabalizer [Re: AnonOIl]
CT8 Offline


Registered: 10/09/14
Posts: 11219
Loc: Idaho
Is that engine one of Toyota engines that use oil because of a pistons]design problem?
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#4799068 - 06/27/18 04:58 PM Re: What's the deal on Lucas Heavy Duty Oil Stabalizer [Re: AnonOIl]
SirTanon Online   content


Registered: 06/23/14
Posts: 2233
Loc: Phoenix, Arizona - USA
The major issue is that Lucas Oil Stabilizer thickens the oil, but because it does not itself contain any beneficial additives, what it really ends up doing is reducing the effectiveness of the motor oil to clean and neutralize acids. The end result is thicker oil that won't protect as well.

You're much better off going up a grade in oil thickness. If you're using 10W-30 oil, then bump it up to a quality 10W- or 15W-40 oil.. such as Shell Rotella.
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#4799078 - 06/27/18 05:07 PM Re: What's the deal on Lucas Heavy Duty Oil Stabalizer [Re: AnonOIl]
rollinpete Offline


Registered: 03/20/17
Posts: 499
Loc: West Ma.
Here's a voa of lucas oil stabilizer
Click here and scroll down
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97 Ford Expl.Sport 4.0 ohv 4wd 5spddrive183k miles
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I like my oil (slippery).


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#4799102 - 06/27/18 05:44 PM Re: What's the deal on Lucas Heavy Duty Oil Stabalizer [Re: CT8]
AnonOIl Offline


Registered: 10/01/17
Posts: 37
Loc: GA, USA
Currently running 5w30

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#4799111 - 06/27/18 05:54 PM Re: What's the deal on Lucas Heavy Duty Oil Stabalizer [Re: AnonOIl]
SubieRubyRoo Offline


Registered: 05/14/12
Posts: 1232
Loc: Winchester, Indiana
Don’t use it. That’s the deal.

Buy a thicker HDEO like Delo, Delvac, or Rotella. Lucas “waters down” the effectiveness of any oil. It’s that simple.

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#4799159 - 06/27/18 06:57 PM Re: What's the deal on Lucas Heavy Duty Oil Stabalizer [Re: SirTanon]
ltslimjim Offline


Registered: 08/06/10
Posts: 5663
Loc: WatUpDoc
Originally Posted By: SirTanon
The major issue is that Lucas Oil Stabilizer thickens the oil, but because it does not itself contain any beneficial additives, what it really ends up doing is reducing the effectiveness of the motor oil to clean and neutralize acids. The end result is thicker oil that won't protect as well.

You're much better off going up a grade in oil thickness. If you're using 10W-30 oil, then bump it up to a quality 10W- or 15W-40 oil.. such as Shell Rotella.


This 100%.
Originally Posted By: SubieRubyRoo
Don’t use it. That’s the deal.

Buy a thicker HDEO like Delo, Delvac, or Rotella. Lucas “waters down” the effectiveness of any oil. It’s that simple.


^That also. Better to step up a grade of oil. Maybe a HDEO like Rotella T5 or a high mileage oil would be a step up from 5w-30; at least in favor of those instead of Lucas. Not worth it. You could go to a 10w-40 or even now during an OCI on 5w-30.

Another thing would be to do a piston soak overnight next time the plugs are due.

Lucas is fine for masking and helping with viscosity...but so does going up a grade of oil and you get more for less money. It's a money pit or an expensive band-aid at best.


Edited by ltslimjim (06/27/18 07:00 PM)
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#4799166 - 06/27/18 07:06 PM Re: What's the deal on Lucas Heavy Duty Oil Stabalizer [Re: AnonOIl]
FlyNavyP3 Offline


Registered: 07/04/16
Posts: 1426
Loc: Jacksonville, FL
I'd sooner run 20w50 or SAE 50 over Lucas in an engine to help with consumption. If you're using 5w30 now stepping up to an inexpensive 15w40 would yield about the same increase in viscosity as mixing in Lucas at the recommended dose and the 15w40 would be a boost in additives over the 5w30 as opposed to a dilution of the additives with Lucas. Walmart 15w40 is great stuff and it's cheap, try that and report back.
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#4799208 - 06/27/18 07:46 PM Re: What's the deal on Lucas Heavy Duty Oil Stabalizer [Re: AnonOIl]
Buzzinhalfdozen Offline


Registered: 01/29/17
Posts: 52
Loc: Michigan
Do a piston soak with a solvent. I used mmo and lc20. Check the thread where I asked a similar question about oil consumption in a Highlander. After that use an oil a grade or two up depending on consumption. I think I used 5w-40 euro oil at the time because that's what I had. There were several suggestions to try a high mileage oil as well.

Lucas is to be stayed away from. There is no point in adding a substance that dilutes oil additive packages when you can just use a thicker oil.
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#4799213 - 06/27/18 07:53 PM Re: What's the deal on Lucas Heavy Duty Oil Stabalizer [Re: AnonOIl]
andyd Online   content


Registered: 09/25/04
Posts: 7262
Loc: Marshfield , MA
I bought a qt for a Jeep. BIL wised me up. I used it to lube the cams on a Honda head R+R instead. Stuff is really too slippery for assembly lube. I would use a cheap 20w50. After I poured a can of Berryman's B 12 Chemtool into what is in the sump and idled it for 10-20 minutes. A fill -idle - drain using kerosene is what Smoky Yunnick recommended 50+ yrs ago.


Edited by andyd (06/27/18 08:13 PM)
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1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline HM 0w20 and OEM filter
Thick oil is better grin2

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#4799860 - 06/28/18 03:55 PM Re: What's the deal on Lucas Heavy Duty Oil Stabalizer [Re: AnonOIl]
man114 Offline


Registered: 05/17/13
Posts: 39
Loc: NY
Dilutes the additive package but it’s thick. Would quiet a loud old engine. I have 4 gallons of it that I bought for $9 at a Kmart that mistakenly was shipped it instead of the usual quarts they have. I don’t know why I bought it. It just seemed like a good deal.

I’ve used thickeners like it in small engines to get a bit more use out of them. Usually stuff I garbage picked. I’d probably reserve it’s use for that.

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#4799939 - 06/28/18 06:01 PM Re: What's the deal on Lucas Heavy Duty Oil Stabalizer [Re: AnonOIl]
SubieRubyRoo Offline


Registered: 05/14/12
Posts: 1232
Loc: Winchester, Indiana
I'd probably enjoy lighting $9 on fire and running around the yard naked more than I would enjoy finding out how quickly Lucas can do bad things to my engine (OPE, car, etc).

It's been proven to entrain LOTS of air in the oil (on this site, no less), and even if you're brand new to oil you should be able to understand that air is not a lubricant, oil is. You've got three choices, the way I see it: 1. live with it; 2. run a thicker oil and live with it and a little lower consumption; or, 3. rebuild the darn thing and start over. Your money, your call. But IMHO the Lucas is at best a very poor choice to put in your sump and should be avoided at all costs.

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#4805192 - 07/04/18 04:25 PM Re: What's the deal on Lucas Heavy Duty Oil Stabalizer [Re: AnonOIl]
airbusdrvr Offline


Registered: 01/03/06
Posts: 39
Loc: Charlotte
I know Lucas products are not a favored product here and I have never used any of them but if they are as bad as everyone says they are on BITOG wouldn't there have been a class action lawsuit against Lucas by now? Remember the class action lawsuit against Slick 50? As litigious as society has become I'm sure some law group would have went after Lucas by now if their product was purely useless.

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#4805372 - 07/04/18 11:02 PM Re: What's the deal on Lucas Heavy Duty Oil Stabalizer [Re: AnonOIl]
jakewells Offline


Registered: 12/28/12
Posts: 523
Loc: Cave City KY
I have only used it in gear boxes or manual transmissions to cut down on noise with luck.
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1994 Ford F150 302 4R70
Chevron Delo SAE 30 CF/SL Fram XG8A
1978 Chevy Nova 250 I6 3 on the tree.
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