Yo guys, will an HDEO like Rotella or Delvac clean varnish off the insides of my engine? I don't think I have much/any actual sludge, but everything in there has a brown coating that I'd like to get rid of. I've been running M1 in the thing for the last 10 years, but it's still varnished.
HDEO clean off varnish?
- Thread starter Tremo
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Use auto rx and call it a day/
Will AutoRX remove varnish? My understanding it that is won't. Where is Frank?
My first post. Ester in a synthetic formulated motor oil (mostly used in Group IV formulations)will eventually work its way between the metal and the sludge and will lift the sludge off from the metal. A faster method would be to use an engine flush.
It would seem that LC20 would be a choice for varnish removal. ARX will progrssively liquify sludge and clean the ring packs. Two different products--two different ways of cleaning. That is how it's been reported here at BITOG.
BTW I am not mburnikas. Your are not either, jdean right?
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Not in my experience. I've been running Delo in the Legend for over 100k miles and the varnish is still there.
Use an engine flush, put in Valvoline AC, and no more varnish. That's been my experience.
Engine flushes may cause lubrication problems--increased wear during flush.
If you use a better oil now you will limit further varnish buildup.
Since Varnish is a hard coating, what exactly does it have to do with sludge. I say live with the varnish that has formed and use an oil that won't add any more.
If you use a better oil now you will limit further varnish buildup.
Since Varnish is a hard coating, what exactly does it have to do with sludge. I say live with the varnish that has formed and use an oil that won't add any more.
Is there any evidence that this is true? Anybody?
It will when combined with auto-rx. At least that was my experience.
427Z06 wrote: "Is there any evidence that this is true?"
Recently, I posted that the active ingredient in LC20 appears to be cyclohexanone. http://theoildrop.server101.com/forums/s...ge=0#Post780816
BASF sells cyclohexanone as a solvent for a multitude of resins, adhesives, paints and coatings. Is dissolves many things.
So, no. I have no direct evidence. However, dissolved varnish is consistant cyclohexanone as a solvent.
Recently, I posted that the active ingredient in LC20 appears to be cyclohexanone. http://theoildrop.server101.com/forums/s...ge=0#Post780816
BASF sells cyclohexanone as a solvent for a multitude of resins, adhesives, paints and coatings. Is dissolves many things.
So, no. I have no direct evidence. However, dissolved varnish is consistant cyclohexanone as a solvent.
a good engine flush will dissolve varnish and also help to disbond any sludge that is attached to metal. Many of these sludge particulates are electroststically attracted to metal. A good engine flushing solvent.
Trixman:I am not mburnikas, Iguess neither are you.
Trixman:I am not mburnikas, Iguess neither are you.
Well...here's an interesting observation of mine. A friend came over asking me to help with an oil change. It was an old Honda Civic that he picked up cheap to use as a beater car. This engine has the dipstick tube going through the branches of the exhaust manifold. So even though the engine had regular oil changes, there was a layer of varnish on the dipstick which was probably due to the heat radiating from the exhaust manifold.
When I saw this, I took a shop rag and poured a generous amount of LC on it and then vigorously rubbed on the varnish on the dipstick. Nothing came off. Not even a little bit. This may not be a good test as it may take time and heat to work, but I have yet to see anything definitive that LC removes varnish.
I have seen it(gel) on top of a cam bearing cap. It wiped off with a rag. I think varnish is a coating like a protective wood finish. Most sludge can be removed with chemicals and short intervals but we just have to live with varnish.
Good, nice to dispell the conspiracy theories concerning new posters on this subject.
If tremo knows his engine....If it is well maintained, fairly sludgefree...then I see no problem with a shock solvent flush for the varnish either.
LC was my suggestion in case he is unsure of the car's history. It would be less invasive...working over time.
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