Quality differences between motor oil. brands & bulk oil from oil-change places
techman41973
bottle (conventional not synthetic)?
Is there any real quality differences between bottled oil and the
bulk oil places like Jiffy Lube use?
Thanks
jim
You haven't defined what you mean by quality. For example if you think
quality means reducing engine wear, there is very little difference that
can be measured between brands of oil when it is fresh and clean.
If you had a hundred cars that were all identical and driven
identically the same but used different brands of oil. Then if you were
also inclined to change oil on these vehicles every 3000 miles, it is
extremely unlikely you would ever be be able to determine a correlation
between oil brand and engine wear.
If instead you changed the oil every 6000 miles you still probably
won't be able to see any differences between most of the brands in wear
based on which oil was used. At that maintenance level level you might
find one brand where the vehicles using that brand had slightly more
wear than the others (after many many miles).
If instead you changed the oil every 12000 miles on your 100 identical
vehicles after many miles you would probably be able to see some real
differences in the correlation of engine wear to oil brand.
So buy a hundred cars and hire a 100 trained drivers and follow
regimen number 3 and in a few years you can come back and tell us what
brand provides the best wear protection.
-jim
Kruse
There is differences between oil brands. But if you change your oil
regularly and at a maintained schedule,
your car will easily make it to 250K, even if you use a quikie lube
with bulk oil.
Same with filters. There is a more noticeable difference here between
your premium and economy filters.
But once again, a regular maintenance schedule will have your car wear
out before your engine, even
if you use a Fram.
hls
"techman41973" <techma...@yahoo.com> wrote in message
news:31b79c0f-d2cc-45f5...@22g2000yqr.googlegroups.com...
Bulk oil and packaged oil are the same. It is just a heck of a lot cheaper
to buy oil in bulk than in the smaller packages.
There are differences between different brands and variants of oil.
Largely
the additives packages may be different and present at different
concentrations.
Most of us have a preference for a particular oil, based on personal
observations
or on advertised qualities. Not very accurate methods, often, for
selecting the
best product.
Don Stauffer
All motor oils must pass tests by SAE and a few other agencies. So they
meet certain standards. Yet they may be different. Any number of
additives can meet performance specs. While most oils can be used in
any engine as long as it meets viscosity and service grade requirements,
occasionally there is an engine that doesn't like one brand as well as
others. This is getting to be much rarer today, however.
Ashton Crusher
If you use Fram filters then you can use any brand of oil because the
Frams will filter out pretty much everything anyway.
Runk
and asphalt based oils but never could get a straight answer out of them.
Any one know where that train of thought come from.
"techman41973" <techma...@yahoo.com> wrote in message
news:31b79c0f-d2cc-45f5...@22g2000yqr.googlegroups.com...
hls
"Runk" <r.ru...@mchsi.com> wrote in message
news:j4idnW7kyaqlnqTW...@mchsi.com...
> When I was a kid I've heard the old timers talk about paraffin based oils
> and asphalt based oils but never could get a straight answer out of them.
> Any one know where that train of thought come from.
Petroleum crude oil has both asphaltenic components (large molecules with
aromatic ring structures, and other characteristics), branched hydrocarbons
both hydrogen unsaturated and saturated, and "paraffins". Paraffins were
named
this because they were typically very stable and didnt tend to react easily
with
many other chemicals.
Paraffin waxes are just larger molecules of paraffins. They are so large
they are
solid, like polyethylene.
The best oil stocks were the virgin paraffinic oils from places such as
Pennsylvania
oil field. They could be cleaned up by distillation, hydrogenated, etc and
made into
excellent lubricants (additives were added to even improve on this
dramatically).
Alphaltenics can also be beneficiated, but they were not the desired
starting materials
that the paraffinic oil were.
HTH
Vic Smith
wrote:
Not sure about that. Even a Fram might not work if you buy Mason jar
oil. There was a gas station in Chicago that sold oil in Mason jars
years ago. Called it re-refined. Looked good. Like honey.
--Vic
hls
"Vic Smith" <thismaila...@comcast.net> wrote in message
news:upqij5d2cut1dd4c1...@4ax.com...
It was possible to make a much better oil from re-refining than was normally
the result of virgin crude refining, at least in the old days. Some of the
sludge
forming materials, polymerizable olefins, were largely dropped out in the
engines before the re-refining process. With good distillation and
reformulation,
this product could actually be better than new. And of course with things
done
poorly, they would just be cheap.
Bob Jones
"Don Stauffer" <stau...@usfamily.net> wrote in message
news:4b38cafb$0$89397$815e...@news.qwest.net...
Some brands of oils feel more smooth than others though. Valvoline and
Castrol seem to stand out. I prefer Valvoline because it performs better in
cold weather.
Hachiroku ハチロク
Damn! A walking Wikipedia! ;)
Hachiroku ハチロク
Didn't we have this discussion already?
Hachiroku ハチロク
>> Are there any real quality differences between oil brands in the bottle
>> (conventional not synthetic)?
>> Is there any real quality differences between bottled oil and the bulk
>> oil places like Jiffy Lube use?
>> Thanks
>
> Bulk oil and packaged oil are the same. It is just a heck of a lot
> cheaper to buy oil in bulk than in the smaller packages.
I have 6 cars. I better start thinking about 55 gal drums...
hls
"Hachiroku ハチロク" <Tru...@e86.GTS> wrote in message
news:pan.2009.12.30....@e86.GTS...
Nope, a professional chemist for years.