Lucas Oil additive ? Good or Bad?

16Pilot

Petty Officer 1st Class
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Mar 18, 2004
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I am planning to use Royal Purple straight 30 weight, however, I was going to put full synthectic Lucas stabalizer as well. any thoughts?
 

KaGee

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Re: Lucas Oil additive ? Good or Bad?

That opens up the ole' can-o-worms.<br /><br />There are some here that feel additives to the oil are a waste of $$.
 

TheOilDoc

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Sep 26, 2004
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Re: Lucas Oil additive ? Good or Bad?

The Royal Purple is already a full synthetic oil containing everything you need for your application.<br /><br />Mixing different additives can actually reduce the oil's effectiveness. In this case more is not better.
 

RatFish

Chief Petty Officer
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Jul 29, 2003
Messages
647
Re: Lucas Oil additive ? Good or Bad?

Forget about additives. Most are "Snake Oil". Like TheOilDoc said, everything you need is already in the oil.
 

cmyers_uk

Senior Chief Petty Officer
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May 4, 2004
Messages
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Re: Lucas Oil additive ? Good or Bad?

I have apsolutely no knowledge about oils so why reply you ask, well for what its worth this is my common sense approach that works for me.<br /><br />99% of the time the manufacturer makes his product perform at its best. The engine/outdrive manufacturer match their components to a recommended oil which provides a balance between performance and life expectancy. <br /><br />Very few people are skilled enough to predict the effect that the additive will have when mixed with your specific oil running in your engine and my guess is that it is unlikely any scientifc physical testing has been done.<br /><br />Therefore I always stick to what the manufacturer recommends, I appreciate that this will cost me more but I feel its a safe way to proceed. As said in many threads on the oil subject the cost of a new drive / engine is alot to gamble on.
 

tommays

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Re: Lucas Oil additive ? Good or Bad?

i have seen there display at auto stores and it appears that some of there additives create a foaming problem even in the store display<br /><br />tommays
 

DHPMARINE

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Dec 16, 2003
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Re: Lucas Oil additive ? Good or Bad?

Yep,my advice for what it is worth.<br />15 year old motor,why change it's diet?Probably been runing on 30 straight or 25 - 40W for years.<br /> now add sythetics and additives and see what happens.??<br /> <br />DHP
 

boater4life

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Nov 5, 2002
Messages
126
Re: Lucas Oil additive ? Good or Bad?

I use it for all oil changes ie: boat, truck, etc. It does a nice job. In addition, it also stablizes the oil during winter.
 

cobra 3.0

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Jul 31, 2003
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1,797
Re: Lucas Oil additive ? Good or Bad?

For what it's worth my experience says some additives do have their place. I have used ring and valve lifter cleaners in my engine oil and noticed that my oil guage started working properly. It always showed low oil pressure and after adding it within a few short hours of operation, the guage performs flawlessly. I have changed my oil since then and the guage continues to work properly. <br /><br />However, I have experienced the similar observations with synthetic oils in my cars. The engines seem to run quieter and smoother after only a few 100 kms. <br /><br />I also like to use fuel injector cleaners at every oil change in my cars, and have never had to clean any injectors. My oldest car was a 1989 300,000km Volks Jetta and it ran superb. I only sold it because it was badly rusted.<br /><br />...but I'm sure others will disagree. To each his own.
 

LubeDude

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Re: Lucas Oil additive ? Good or Bad?

OK, lets look at it this way. The manufactures take a whole lot of time formulating there oil right down to the very drop of additives to perform the way they want them to for the application. Why upset the delicate balance of this chemistry.<br /><br />What you are saying is that you can formulate your oil better than the oil company can.<br /><br />Hey TheOilDoc, I guess we can aggree on a few things. Actually more than just a few. :p :p :D
 

ron7000

Banned
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Jul 10, 2004
Messages
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Re: Lucas Oil additive ? Good or Bad?

http://www.bobistheoilguy.com/images/lucas/lucas.htm <br /><br />read that.<br /><br />while lucas does work, the problem with most additives is that they upset the balance of an oil's additive package. In lucas' case, aeration and foaming.<br />Instead of spending money on an additive, put it towards a well formulated oil in the first place, which you have with RP.<br /><br /><br />Ever see those oil displays on the counters in parts stores, where one side has oil X and the other side is the same oil but with some additive? The display will have a handle you turn which spins a few plastic gears or maybe some egg beaters in the oil. And what the additive company tries to show is how well their product works by making the oil climb up the gear or egg beater, coating more of the moving part with more oil. The big problem with the display, and which shows how ignorant people are about lubrication, is the additive side will have a million air bubbles in the resevoir of oil at the bottom. Oil aeration like that is very very bad. It causes more heat, more friction, and will cause oil pump cavitation and oil pressure failure.
 

LubeDude

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Re: Lucas Oil additive ? Good or Bad?

Originally posted by ron7000:<br /> http://www.bobistheoilguy.com/images/lucas/lucas.htm <br /><br />while lucas does work, the problem with most additives is that they upset the balance of an oil's additive package. In lucas' case, aeration and foaming.<br />Instead of spending money on an additive, put it towards a well formulated oil in the first place, which you have with RP.<br /><br />EEEEEEEEYUP, thats a Roger!!!<br /><br /><br />
 

tommays

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Re: Lucas Oil additive ? Good or Bad?

16<br />just do a search it was covered and fought over why do it again<br /><br />tommays
 

16Pilot

Petty Officer 1st Class
Joined
Mar 18, 2004
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Re: Lucas Oil additive ? Good or Bad?

Thanks again guys, so I guess my best bet is 30w royal purple? oh yeah and what is the best brand if any for the outdrive lower unit?
 

16Pilot

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Mar 18, 2004
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Re: Lucas Oil additive ? Good or Bad?

LOL, Thanks tommays, but is the Royal Purple ok? 30 weight? 4.3lOMC
 

16Pilot

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Re: Lucas Oil additive ? Good or Bad?

DHP, by the way it is a brand new rebuild with really nice parts and very compression. I figured the purple synthectic to be the way to go beacause that is all I ever read about in here. It is supposed to be good stuff.
 

16Pilot

Petty Officer 1st Class
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Mar 18, 2004
Messages
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Re: Lucas Oil additive ? Good or Bad?

I guess we can close this issue though since it has been an ongoing battle with umpteen million opinions. Thanks guys, Royal Purple it is with NO Lucas. Straight 30 with a Hot Blonde sittin on top smiling!! hehe
 

ron7000

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Re: Lucas Oil additive ? Good or Bad?

Originally posted by 16Pilot:<br /> DHP, by the way it is a brand new rebuild with really nice parts and very compression. I figured the purple synthectic to be the way to go beacause that is all I ever read about in here. It is supposed to be good stuff.
if you are running RP in a rebuilt motor, specifically with new rings and/or rehoned cylinder walls, I would seriously consider using a conventional motor oil (non-syn) for break-in. Reason being, with certain synthetics and I think RP being one of them, is they can interfere with the break-in process of the piston ring to the cylinder wall.<br />Here is a decent link that explains the reason well<br /> http://www.stealth316.com/2-breakin.htm
 

LubeDude

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Re: Lucas Oil additive ? Good or Bad?

Just because engines come from the factory with synthetics doesnt mean you can break your rebuilt engine in on synthetics. The honing that is done at the factory on these engines cannot be duplicated on a rebuild. It is "VERY" fine. Break your engine in with a quality regular oil. Run it maybe 5-10 hrs and change both the oil and the filter, refill with regular oil and run it whatever the manufacture would tell you to break in a new engine. Then change to the synthetic. RP is fine.
 
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