Question about Mercedes-Benz 400-Class

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Do automotive stop-leak products actually work? such lucas oil,restore,etc. or are they just snake oil?

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  • garth clizbe Apr 30, 2010

    even power steering leaks?



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Yes the stop leaks do work. But they are only for temporary fixes so you can get to a safe place if you are far from town. I would not trust them for a long period of time.

Posted on Apr 29, 2010

  • Jyackle5
    Jyackle5 Apr 30, 2010

    Even for the power steering.



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Engine Flush.

I get ask this question a lot. Should I do an engine flush? The answer to that is NO! If you have your vehicle serviced at a quick change lube, they will push services like this to you, especially if your a woman. Jiffy Lube is notorious for doing this. Every automotive manufacturer will state in their warranty, if you do this, they will void the warranty simply because it will cause a major engine failure. Over time sludge and deposits build up in an engine, when you flush it, it breaks up these deposits and they settle in the oil pan. Even when you drain the oil and place a new oil filter on, some of these broken up deposits remain in the engine plugging up the oil lube ports. This stops oil from properly lubing vital parts inside the engine causing engine failure. Products like engine flush are known as snake oils in the automotive repair business. The best and safe way to stop sludge build up or remove it, is to use a good quality synthetic oil and quality oil filter. This will end your sludge problem over time. One more thing, avoid quick change lube centers, any of them no matter if it's EZ- Lube, Jiffy Lube, Wal-Mart and on and on. The people working there are not automotive techs, the have not went to collage or have a degree in automotive technology. No one with a degree in automotive technology is going to be working at a quick lube center for minimum wage, they will be working in a good independent service center or dealership making $22 or more per hour. For more information on this, go to youtube and search Jiffy Lube Scam. There are tons of news story video's on all of these centers.

on Jun 20, 2014 | Cars & Trucks

1 Answer

Smal puddle under car. the transmission pan is wet (not soaked) and I cannot find a leakage point

First thing you need to do is clean everything off so there is no residue anywhere. Then run the vehicle and watch for seepage....everywhere.... First, make sure what you are seeing is actually trans oil (reddish and much thinner than engine oil). Make sure you check the bellhousing also. If the leak is coming from the front seal it will blow back on the pan when you are driving. Check cooling lines and their connections at the trans.
If you have checked everything over carefully and still can't locate the leak, you could try using a quality sealer such as lucas. Only time it won't work is if a line or fitting is leaking or if the leak is just too large. That product is one of the few I've seen that won't damage the friction material inside the unit. Don't permit the trans to run low and don't expect overnight results from a sealer. It takes a little time to restore a dried out or brittle seal.

May 12, 2011 | 2002 Jeep Grand Cherokee

1 Answer

Hello, I have a 91 honda accord and just want to know if I can use Prestone power steering stop leak?......and if not, what kind of power steering can I use? Thank you in advance.

If your leak is due to a dried out or shrunken seal, aftermarket products may do the trick. Personally, I favor Lucas products.

The thing is, if the stop leak additives work, great! But if they don't, well, you haven't spent a lot of money. I've used Lucas products successfully for years.

Jan 22, 2011 | 1991 Honda Accord

1 Answer

Small oil leak coming from trans area

cant help you with the radio that sound like a wiring problem and thoose are hard to diagnose over a computer but the oil problem... if the oil is comming from the back of the engine were the trans meets then the rear main seal is leaking. You can do one of two things. Yo u can pull the trans and replace the seal on the engine or you can go to a parts store and get a bottle of "LUCAS" oil stop leak it will seal it up for you. and for the next 3 oil changes make sure you put a bottle in the oil. this will not harm the engine or any other componants in the car. i recomend "LUCAS" brand because its the only stop leak i've ever seen work so fast and i've never had anyh comebacks at my shop for this problem

Jan 14, 2010 | 1989 Ford Crown Victoria

1 Answer

I have a 1996 5.2 liter dodge ram and i have oil in my radiator

You have a main seal That has gone bad. Other than taking apart and replacing, try running something like Lucas Oil Additive (or similar product that claims to stop or reduce leaks) and another "leak stopping" product in your radiator. Between the combination of the two, it may stop or at least reduce your problem. If there is oil in your radiator, there is probably coolant in your oil too.

Nov 06, 2009 | 1996 Dodge Ram 1500 Club Cab

1 Answer

Radiator leak

If it is a small leak - you can temporally help solve it with some great product by "Lucas" stop leak.. Lucas is a bit more money but worth it.. The make grate products.. The leak will need to be repaired. Sometimes if the radiator has a crack - it might need to be replaced..

Have a great day !

Oct 26, 2009 | Cadillac DeVille Cars & Trucks

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1995 Oldsmobile Aurora Oil Pan Leak

yes and no, i wouldnt recomend it with aurora.. i had same leak from the oil pan and put in the bars and it stopped the leak for a couple weeks. after that it leaked the same as before. i would never use it again on any of my cars.. i had a friend put in new pan gasket and it stopped the leak... i believe this is pretty common with the it 95?

Dec 27, 2008 | 1995 Oldsmobile Aurora

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