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#22
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green antifreeze in my 93 civic
Tegger wrote:
> z > wrote in news:a9ce48a3-c522-41a6-8675- > : > >> On Jan 24, 2:06�pm, Tegger > wrote: >> >>> Don't turn your head unless you've replaced your fluid with official >>> Honda Head Turning Fluid. Otherwise, damage will result to the neck >>> and spinal column assembly. >> too late. you oughta hear it creaking and groaning. >> >> how'd your engine swap ever turn out? > > > > Never did it. > > I have been keeping extremely close observation of my oil consumption > over the last year or so. Excessive oil consumption was the primary > reason I was considering an engine replacement, so I wanted to perform a > rigorously controlled study of just what was getting sucked though the > motor. > > Well. > > It's been roughly 1,500 miles per quart for a long time (I determine > this after correcting for an earlier error in interpreting dipstick > markings). > > Very lately consumption has been DECREASING. > > In November it was 1,500 mi/qt. > In December it was 1,800 mi/qt. > > I just checked it now, the proverbial bell having rung to indicate it > was time for another reading. I checked, then checked again. And again. > I even went pessimistic on my dipstick reading. > It's 2,500 mi/qt. At least. > > I do not know what's going on here. Each year there is a decrease > corresponding to the winter drop in ambient temperatures, but this is > the most consumption has declined in several years. And this has not > been a particularly cold winter. > > Some time ago I posted a query to rec.autos.tech about this, and it was > suggested to me that I probably had a collapsed oil control ring spacer. > In such a case, there would be sudden increase in oil usage, then the > piston groove would eventually carbon up and usage would decline. Maybe > this is the explanation. > > Without having X-Ray vision and being able to see inside the engine, > this is a real mystery, > you've changed oil though haven't you? my 89 civic used to burn regular oil but that's dropped dramatically using mobil 1. and it continues to drop too. i have two theories. 1. there's less volatile fraction in the base oil of m1 to evaporate. [regular oil is a mix of weights. the light ones are easier to boil off.] 2. i read about piston aero engine oil not having viscosity modifiers because they tend to ash around the piston rings. if this is the case, and m1 is proving to be a very effective cleaner of my previously resined up engine, i can see it getting rid of piston ring deposits allowing them to seal better again. i'm basing 1 on what i know to be fact about the mix and basic chemistry. 2, i'm guessing, but i don't buy the collapsed ring spacer - that would make consumption go to heck, and it wouldn't start to seal after time - it would just continue to deteriorate. but for sure, my experience of m1 is the same as yours. |
#23
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green antifreeze in my 93 civic
On Jan 25, 9:05Â*pm, jim beam > wrote:
> Tegger wrote: > > z > wrote in news:a9ce48a3-c522-41a6-8675- > > : > > >> On Jan 24, 2:06�pm, Tegger > wrote: > > >>> Don't turn your head unless you've replaced your fluid with official > >>> Honda Head Turning Fluid. Otherwise, damage will result to the neck > >>> and spinal column assembly. > >> too late. you oughta hear it creaking and groaning. > > >> how'd your engine swap ever turn out? > > > Never did it. > > > I have been keeping extremely close observation of my oil consumption > > over the last year or so. Excessive oil consumption was the primary > > reason I was considering an engine replacement, so I wanted to perform a > > rigorously controlled study of just what was getting sucked though the > > motor. > > > Well. > > > It's been roughly 1,500 miles per quart for a long time (I determine > > this after correcting for an earlier error in interpreting dipstick > > markings). > > > Very lately consumption has been DECREASING. > > > In November it was 1,500 mi/qt. > > In December it was 1,800 mi/qt. > > > I just checked it now, the proverbial bell having rung to indicate it > > was time for another reading. I checked, then checked again. And again. > > I even went pessimistic on my dipstick reading. > > It's 2,500 mi/qt. At least. > > > I do not know what's going on here. Each year there is a decrease > > corresponding to the winter drop in ambient temperatures, but this is > > the most consumption has declined in several years. And this has not > > been a particularly cold winter. > > > Some time ago I posted a query to rec.autos.tech about this, and it was > > suggested to me that I probably had a collapsed oil control ring spacer. > > In such a case, there would be sudden increase in oil usage, then the > > piston groove would eventually carbon up and usage would decline. Maybe > > this is the explanation. > > > Without having X-Ray vision and being able to see inside the engine, > > this is a real mystery, > > you've changed oil though haven't you? Â*my 89 civic used to burn regular > oil but that's dropped dramatically using mobil 1. Â*and it continues to > drop too. > > i have two theories. > > 1. there's less volatile fraction in the base oil of m1 to evaporate. > [regular oil is a mix of weights. Â*the light ones are easier to boil off.] > > 2. i read about piston aero engine oil not having viscosity modifiers > because they tend to ash around the piston rings. Â*if this is the case, > and m1 is proving to be a very effective cleaner of my previously > resined up engine, i can see it getting rid of piston ring deposits > allowing them to seal better again. > > i'm basing 1 on what i know to be fact about the mix and basic > chemistry. Â*2, i'm guessing, but i don't buy the collapsed ring spacer - > that would make consumption go to heck, and it wouldn't start to seal > after time - it would just continue to deteriorate. > > but for sure, my experience of m1 is the same as yours.- Hide quoted text - > > - Show quoted text - could be just plain old chemistry. oil contains various 'seal swellers' and undoubtedly every brand has its own concoction, maybe the brew in Mobil 1 just happens to suit what your engine needs better than other brands. just handwaving here, but given mobil 1's ability to creep and leak, could be they even put in a more powerful sweller to keep things under control, relying on the increased lubrication of the oil to keep the seals from wearing more when swelled. |
#24
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green antifreeze in my 93 civic
On Jan 25, 8:29*pm, Tegger > wrote:
> z > wrote in news:a9ce48a3-c522-41a6-8675- > : > > > On Jan 24, 2:06*pm, Tegger > wrote: > > >> Don't turn your head unless you've replaced your fluid with official > >> Honda Head Turning Fluid. Otherwise, damage will result to the neck > >> and spinal column assembly. > > > too late. you oughta hear it creaking and groaning. > > > how'd your engine swap ever turn out? > > Never did it. > > I have been keeping extremely close observation of my oil consumption > over the last year or so. Excessive oil consumption was the primary > reason I was considering an engine replacement, so I wanted to perform a > rigorously controlled study of just what was getting sucked though the > motor. > > Well. > > It's been roughly 1,500 miles per quart for a long time (I determine > this after correcting for an earlier error in interpreting dipstick > markings). > > Very lately consumption has been DECREASING. > > In November it was 1,500 mi/qt. > In December it was 1,800 mi/qt. > > I just checked it now, the proverbial bell having rung to indicate it > was time for another reading. I checked, then checked again. And again. > I even went pessimistic on my dipstick reading. > It's 2,500 mi/qt. At least. > > I do not know what's going on here. Each year there is a decrease > corresponding to the winter drop in ambient temperatures, but this is > the most consumption has declined in several years. And this has not > been a particularly cold winter. > > Some time ago I posted a query to rec.autos.tech about this, and it was > suggested to me that I probably had a collapsed oil control ring spacer. > In such a case, there would be sudden increase in oil usage, then the > piston groove would eventually carbon up and usage would decline. Maybe > this is the explanation. > > Without having X-Ray vision and being able to see inside the engine, > this is a real mystery, > > -- > Tegger > > The Unofficial Honda/Acura FAQwww.tegger.com/hondafaq/ well, even 1500 miles isn't too bad. i'm going through a quart of oil every gas fillup or two, but that's just because my vtec solenoid is spraying oil like a texas gusher. |
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