So maybe I won't have to use the BlueDevil after all? I hope not...
congrats - you're the only one who has uploaded the product to youtube as far as I can tell. https://www.stp.com/sites/default/files/STP%C2%AE-High-Mileage-Power-Steering-Fluid-%2B-Stop-Leak-12oz-SDS.pdf Oh it's mineral oil - just like LUCAS. Hilarious. Oh it DOES have a bit of synthetic plasticizer in it! cool. https://pubchem.ncbi.nlm.nih.gov/compound/Benzyl-butyl-phthalate#section=Use-and-Manufacturing
OK so I added that above STP "stop leak" - which is mainly also like Lucas but ALSO has a synthetic plasticizer!! cool. Maybe it will help. I'll drive around a bit tomorrow - but first see if all my driving today worked in that second bottle of Lucas.
YEP - new leak from LUCAS. So I'm gonna drive to recycle the power steering fluid I took out - and then see if it is any better or still leaking. Since it's supposed to get better with more driving. And if still leaking then I'll try the synthetic swelling treatment - just 3 ounces!!
I cleaned off the "residual oil" from where it appeared to be leaking - the seal - and so on the frame around it. So far no leaks yet today - I just drove more to really got the engine heated up. So now it's just a waiting game. I added almost two full bottles of Lucas. So if there's any more leaking then I'll add 3 ounces of Bluedevil. promo vid
OK I found a THIRD auto parts store that stocked Blue Devil - it's a little 8 ounce bottle for $13 and I said, "thanks for stocking it." And the worker said, "That stuff's amazing."
Does anyone know if this is the same old product that just dissolves all the rubber seals and then makes them swell up? This stuff never lasts very long and destroys your entire hydraulic system (reservoir, pump, hoses, rack and pinion). Before pouring this in a P.S. reservoir, I would try soaking both an old and new rubber seal to see if they just swell up, if so stay away from these type of products. But if it did work, you could also consider draining the old fluid out and replacing it with new fluid to keep from damaging the other seals/hoses in the systemsofteners (swelling solvents)
Diethylene glycol monoethyl ether is a primary alcohol that is ethanol substituted by a 2-ethoxyethoxy group at position 2. It has a role as a protic solvent. It is a diether, a primary alcohol and a hydroxypolyether.It is an active solvent for cellulose acetate butyrate, nitrocellulose, epoxy resins, and other coating materials.
The BlueDevil Power Steering Stop Leak is specifically designed to repair leaks coming from around any of the rubber seals or gaskets.So neither the two auto parts stores had Blue Devil stocked! So I got another 12 ounces of Lucas Leak Stop and - when I got back - so far no leaking yet from the previous treatment. I then used the transfer pump to take out about 12 ounces. Wow - I'm really thinking this stuff is NOT GOOD for the power steering.... dissolving the rubber seals?
Blue Devil review vid
"when it does its magic hopefully...it appears to have worked."
(1 BOTTLE OF POWER STEERING FLUID EVERY 3 DAYS - BADDD LEAK) - I MIXED BLUE DEVIL POWER STEERING STOP LEAK WITH 1 12Oz BOTTLE OF LUCAS POWER STEERING STOP LEAK & LIKE MAGIC - BARELY A DRIP EVERY 3/4 DAYS (LITERALLY)So - it ONLY works on SEALS...."some sort of magic in there." - it's a Synthetic Plasticizer chemical. haha.
What I don't get is that supposedly you have to replace the WHOLE power steering Rack and pinion...
Just use a third.... (2nd vid)ONLY PRODUCT THAT WORKED
THIS STUFF WORKS! I had a bad power steering leak in my GMC work van, leaving a puddle the size of a dinner plate every time I parked. Tried several other major brand stop leak products
Number one in the country - why? LUCAS is just mineral oil - and it messes up the power steering pump if used too much - I think - but maybe the pump doesn't have a "motor" since it's a hydraulic pump run by the crank belt....
Anyway the Lucas is not fixing the leak yet....
So I'm gonna try Blue Devil....
It's NOT thick - it's clear and thin....
Nothing works on the high pressure side. 150 psivid - seal inside the boot causing the leaking
Well I'm pretty sure that is what is going on - since the lines were replaced not that long ago and I don't see any rust or holes where the fluid is. Still I'm not sure...
so that's Blue Devil - what is it?
biological source synthetic
https://www.bobistheoilguy.com/forums/threads/whiteshepherd-bluedevil-brake-fluid.225671/#post-3528116
Diethylene glycol (DEG) is an organic compound with the formula (HOCH2CH2)2O. It is a colorless, practically odorless, poisonous, and hygroscopic liquid with a sweetish taste.
replaced with Blue Devil. In any case, the active ingredient is diethylene glycol monoethyl ether, one of the chemicals found in the mixture of glycol ethers that comprise brake fluid. Does anyone have any experience with brake fluid as a stop leak?So the main ingredient of Blue Devil is less than 5% of Brake Fluid.... based on the below NAPA brake fluid....
we used to soak fuel injector seals in brake fluid to "swell" them up a little bit before replacement in a certain high pressure fuel system. Not really a stop leak application, but follows the idea of stop leaks swelling seals to stop leaks.
Effects of brake fluid components on rubber
The hardness and swelling of the seal rubbers, when exposed to brake fluid, must ... oligoether, which is the monomethyl ether of a polyglycol based on ethylene .
Instructions say 1/3 bottle. Bottle is 8oz so that would be close to 3oz. I had a severe leak in my Toyota power steering gear box, Used several bottles of lucas to no avail. Tried 1/2 bottle of blue devil and it slowed but didn't stop. Used rest of bottle and it stopped. I recommend it. Be sure to put it in when you are going to be driving for some time to give it time to work
Diethylene Glycol Monomethyl Ether swelling rubberWow - now we know why they say only add 3 ounces!! Amazing.
That's the percentage increase in rubber swelling! Amazing.
Abadzheva, R.N., Sereda, Z.Y., Rudakova, N.Y. et al. Effects of brake fluid components on rubber. Chem Technol Fuels Oils 18, 405–407 (1982). https://doi.org/10.1007/BF00731625
So that must be what is meant by "dissolving" - as it is a solvent....
So after adding Blue Devil, within 1 week something exploded under the car and all the PS fluid leaked out. ALL OF IT. I had to tow the car to get home, and changed the Rack and Pinion with all the rubber hoses ,700$ job. It looked like the seals (from the boots) of the rack and pinion failed completely.
Conclusion:
Should have continued using Lucas ps stop leak until I had enough money saved to change the rack n pinion.
just after two days it turned it into a very fast leak. My friedn had the same experience with this product. They should change the name to speed up leak
made the leak much worse.
seals completely blown. Would not recommend this product for any Honda Vehicles. Didn't realize so much damage could be done with such product.
Added about 1/2 a bottle, 2 days later I had a catastrophic failure in the pump.
a few days after using this product, the power steering rack seals swelled and popped out, causing a catastrophic steering rack leak
made matters three times worse can see fluid draining from tank fast.DO NOT BUY YOU WILL REGRET IT.
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