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I have a 2000 Mazda Millenia S which has either leaky valve guides or leaky seals on the supercharger, causing black smoke at startup. I was considering adding Lukas Oil Stabilizer at my next oil change to reduce some of the smokiness, at least till I can afford to have the seals fixed (expensive).

Is there any danger in using this oil treatment on a supercharger for a few months, and should it help reduce the start-up smoke? any other products better?

Thanks in advance.
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I have doubt that adding the Lucas product would help your situation when it appears that you have already diagnosed the problem as "mechanical" in nature. No lubricant or aftermarket additive will fix a mechanical issue. I suppose enough VI improver or higher viscosity oil might reduce some of the problem that you are encountering, but, that might be at the expense of your engine by not using the recommending visosity grade.

I would have second thoughts about using any "aftermarket" oil additive in a vehicle, unless the product is specifically tested for the application and the OEM endorses the product either formally or informally through a forum such as an established racing program. When it comes to additive products, proceed with caution.

My second thought is that you notice black smoke at startup. Please forgive me in advance, but, so what? Does the engine oil require frequent topping off due to the condition? If you are planning on fixing the problem in a few months, then I would suggest that an additional quart or two of oil per month is quite inexpensive when considering the possibility of premature engine damage/failure or other problems encounterd with using the magic pill (oil additives). How would you intend to get the additive out of the engine if you didn't like it? If the "stuff" laid down any deposits, simply draining your oil would not be enough to remove it. Engine replacement would be your only option to get back to square one.

Generally speaking, when it comes to oil additives, don't do it, unless you "actually" know what you are doing and understand the potential consequences. If you know the problem with your car is indeed mechanical, then fix it. Depending on your mileage and the owner's manual recommendations, consider increasing your viscosity one grade (example: 10W30 to 10W40)and see if the smoking or oil consumption decreases until you can fix your ride.

Good luck.
Stevis I'm sorry but you really don't know what your talking about. What do you know about additives? Have you ever used them? or just read a site saying they're bad. Do you have any proof that they are bad?
I can agree with you about the fact that if a mechanical failure is evident or has been diagnosed that there is nothing that will save it your right.
But to spread the rumour that all additives are bad is a terrible thing to do because without them NO vehicle NO machinery would last for a day or a year. Oil is simple We suck some dinosaur juice from the ground either refine it or synthesis it and add additives to it. Base Oil alone would not stand a chance.

You really need to do some research before stating that ADDITIVES are your worst enemy.

If you say that oil has the balanced amount and already have the additives needed. I will once again have to disagree with you becuase they don't ADDITIVES ARE EXPENSIVE the less the better for the oil guys.
if i were the owner of the car in question,i would consider an overhaul of the engine.some might think i'm crazy,so let me explain.if the problem IS mechanical a overhaul would expose the various engine components to a VISUAL inspection and be evaluated as to it's continued use in the engine.if it is faulty-then it can be replaced.as far as this type of car being supercharged-this is the first example of this type of car/engine combo using this setup.i'll do some research into this but i think that the supercharger might need to be looked at.
esquivel,have you raced the engine or put it through high rpm runs like on a racetrack or high speed on the highway?information right now shows you shouldn't have any serious problems with your engine this soon after manufacture.true it's 4 years old but even the worst made engines wouldn't have this type of problem.
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