Tegger's real-world oil consumption

Ask your little imaginary friends to help with the story telling. And
stop picking at your nose and ass or they will start to bleed.

-jim

 

"Carefully" snipped? More like the opposite. I like to keep my posts at
less than book-length, so I snip regularly

Anyway, I actually did read that link. In that page, I found the following:
"So what about the liquid left behind at each reboiling? Obviously, if the
vapour is richer in the more volatile component, the liquid left behind
must be getting richer in the other one.

"As the condensed liquid trickles down the column constantly being reboiled
by up-coming vapour, each reboiling makes it richer and richer in the less
volatile component - in this case, A. By the time the liquid drips back
into the flask, it will be very rich in A indeed."


Which is /exactly/ what I was saying. You remove the lighter fractions so
that what is left is what /does not/ boil off under the sort of
temperatures experienced by motor oils.

Cheese smells too. But it does not evaporate. Tires smell. Do they
evaporate? Do either of those change volume detectably in the course of
smelling?

 

Quote from above link:
"Evaporation may contribute to oil consumption in an engine and can lead to
a change in the properties of an oil. Many engine manufacturers specify a
maximum allowable evaporation loss."

My point exactly. Oil is designed /not/ to evaporate. Evaporation causes
oil consumption, so it is carefully controlled. The amount lost to
evaporation is -- by design -- not detectable on a dipstick.

 

so what is 9% of 4.5 quarts? how many quarts from "top" to "bottom" on
the stick?

 

but you shouldn't be snipping the relevant bits. and you did in this case.

no you weren't. you were saying that oil does not lose anything through
vaporization. i was telling you that it does, and that although the oil
may not boil - something you were fixated on - it /will/ lose its
lighter fractions.

but dude, you're contradicting yourself - the lighter fractions do
indeed vaporize, and you are left with the heavier fractions. that is
why you've been recording oil losses. that is why there are
vaporization loss tests. this /starts/ when you fill the engine with
new oil, and you have losses from that point on. if you left your oil
in for a longer [more reasonable] period, you'd also notice the rate of
consumption drop once the volatiles have disappeared - again, exactly as
those phase diagrams tell you it would.

ok, go ahead and weigh some fresh cheese on a gram-accurate scale, leave
it out for a day, then re-weigh it. report back.

they are losing their lighter volatile components, absolutely.

volume is not mass. and absolutely, the mass loss is easily detectable.
do your cheese experiment and report back.

 

This is very interesting indeed. I have emailed my source to ask about it.

Oil does spend brief time at 300F. The main bearings, for instance, run at
about 300F when the engine is fully warmed up. Oil squirted onto the
underside of the pistons can also reach that temperature.

 

How in f**k would I have any numbers for the OP's oil consumption????

You are so mind numbingly stupid it is really really frightening. Go
rent the movie "Idiocracy" to get a good look at yourself.

I have been saying over and over that bad numbers are much worse than
no numbers at all. Your religious belief in piles and piles of BS
numbers has a lot to do with why you are so ignorant and stupid. You go
bury yourself in numbers until your eyes glaze over and then tell
yourself "Gee with all these numbers I mutht be really really smart".

Having a huge pile of numbers that represent dipstick reading is a
retarded way of figuring out oil consumption.


If what you are asking is how much oil do my vehicles use. The answer
is so damn little that I can't really tell how much. Thinking about it
now - it is probably close to 15 years since the last time I added any
make up oil to any vehicle I own. I have never added any makeup oil to
my lawnmower either. But my Roto-Tiller - now that is a different story.
I use that maybe 3 hours a year at the most and it eats half a quart of
oil and gallon of gas. it's been doing that for 30 years - ever since I
bought it for 25 bucks.

-jim

 

two things:

1. work with the op's numbers - he's given them to you.

2. record your own instead. duh.

but you won't do either because you have ZERO interest in results, just
pissing and moaning.

vague hand-waving bullshit.. but it's anything to avoid specifics or
walking the talk with you. what an asshole.

 

I did and the numbers didn't add up. You didn't do that. Instead your
eyes glazed over and you mumbled, "Oh look at all the pretty numbers"

Sure I could do that, if he wants to ship his car half way across the
continent.

 

don't put false words in my mouth, asshole.

no, /you/ record /your/ numbers from /your/ school bus asshole. after
you've stopped sniffing the seats and have washed your hands.