thierry wrote:
And I wouldn't expect that to be manually cleaned up. The fact is you
can still fairly easily distinguish UserEddie's comments from the
previous poster's by the total lack of '>' marks on UserEddie's lines.

Yep - not much that could be done about that other than manually editing
every line, but again, all the visual clues that are needed are there.

OK

I've seen a lot worse - such as people leaving all previous 150 lines of
thread dialogue with no trimming, and a one line comment at the very end
(or at the very beginning depending on top/bottom posting). I know I
can get careless if I'm running against the clock in order not to be
late for work - it's either make the post or not make the post because
there's not time to really clean it up.

Well I certainly hope you feel better! 8^)

Bill Putney
(to reply by e-mail, replace the last letter of the alphabet in my
address with "x")


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:-)

Winter... Summer...
Here in Montreal, Qc, Canada we have temperatures dropping to minus 31F in
winter and going up to 95F in the summer... Quite a range.

I'd like to know what oil I should put into my 95 Legacy Wagon this summer
until the cold weather comes. Subaru recommends 5w30 always. Is that crazy
with such a temperature range?

Thanks!
--
Thierry
NOTE: Remove 'NOSPAM' from the reply-to address to contact directly

On Wed, 09 Jul 2003 19:31:44 GMT, "Edward Hayes"
<hayeser (AT) worldnet (DOT) att.net> wrote:

I have been using 0w-30 in the winter, and I think I used it
last summer. This summer I went with 5w-30 since I couldn't
find any Mobil 1 0W.

nate

thierry wrote:

Hi,

I think a lot depends on your engine... as I was describing to
UserEddie, a nice tight engine MAY see some drop in fuel economy if one
uses too heavy an oil for the conditions. OTOH, I've always been a bit
paranoid about oil pressure (spun a bearing in a '61 MGA way back when
and it made an impression???) and like to go on the heavier side, so I'd
personally be inclined to use the 10W-30 (if using dino oil) from late
spring into early fall given the temps you mention. Here where I am in
SoCal, there are summer days when 95 deg F seems COOL. I feel for the
engines...

OTOH, a friend uses 5W-30 Mobil 1 year round in a V-10 Ford Super Duty
pickup, and even when we load it up pretty well and take it to the
desert during the summer, there's no apparent change in oil pressure or
consumption, so that might be a good choice, too!

Best of luck!

Rick

thierry wrote:
If you don't mind one more opinion (but it isn't much different than the
advice already offered): I wouldn't use 5W-30 in conventional oil at any
time, especially in warmer weather - too many compromises (viscosity
extenders) to get the '5W' part of the spec. If you're using a good
synthetic, then no problem in using 5W-30 all year around as you don't
have the same compromises in the oil formulation.

Bill Putney
(to reply by e-mail, replace the last letter of the alphabet in my
address with "x")


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Bill Putney wrote:

I tried 2 or 3 different weights of synthetic when I first
got my '99 Legacy Outback and I found that Mobil 1 15W-30,
always kept topped up, reduced the warmup valve clatter to
a minimum. I suspect that the 0W and 5W stuff is largely
a gimmic to improve EPA mileage. I admit that I'm an old
fart and have an irrational suspicion against water-thin
oils.

Jim Stewart wrote:

Jim

From one OF to another... I'm not sure you're off base! A couple of
years ago, the Castrol website mentioned pretty much the same thing: the
light oils are spec'ed for fuel economy, but they suggested heavier oils
would give better overall protection. I noticed last time I visited the
site this "info" or "advice" was absent. Still, with dino oils, I think
you, Bill and I are of the same mind!

Rick

Jim Stewart wrote:
I also buy into your old fart conspiracy theory. Witness the fact that,
for example, in vehicles that FoMoCo specs. 5W-30 oil for in the U.S.,
they spec. 10W-30 oil in essentially the same engines and vehicles in
essentially the same climates in Europe. The difference? We have CAFE
numbers here.

Sacrifice engine longevity (nothing catastrophic, mind you, but finite
nonetheless) for miniscule fuel mileage number gains

Bill Putney
(to reply by e-mail, replace the last letter of the alphabet in my
address with "x")


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morden wrote:

Agreed... to a point! As I mentioned in one or more of my earlier posts,
a lot depends on your engine. I personally would have no problem with a
15W-50 (or the 15W-40 I run in my car) in NorCal winters, assuming my
driving pattern was the same as it is in SoCal: fire up the garaged car,
drive 70 miles thru heavy traffic, then turn around and repeat the
scenario a couple of hours later coming home.

OTOH, if I were to use my sister's pattern (she's up in your part of the
state) where the car may have sat outside all night, and she's going 3/4
of a mile to the post office and back, then parks the car for several
hours, I'd be inclined to go much lighter. Assuming I'm not losing
pressure or increasing oil consumption by going too light for the
condition of the particular engine (remember, mine's got over a third of
a million miles, so it's hardly a competitor in the "tightness"
department with even a 150k engine, let alone one still under warranty!)

Today there are way too many variables to make the choices as easy as
they were back in the days when you ran 20, or even 10 weight, oil in
the winter, 30 in the summer. Until the engine started burning oil, then
you might switch to 40 in the summer. Some of the OF's here probably
remember those days. Now, with engines being built so much tighter than
even 20 years ago, you want to stay as light as you can as long as you
can... being an oil engineer today sounds like a great way to get gray
hair and an ulcer to me!

That's not surprising, since multi-grades supposedly start as
lightweight oils with a variety of "magic juice" added to achieve the
desired characteristics over their life expectancies. As others have
mentioned in past oil discussions, some grade ranges take a lot more in
the additive package than others, so it wouldn't surprise me they break
down faster.

As to the engines, Castrol hinted in not too subtle terms a couple of
years ago the engine is going right along with the oil--the faster the
oil breaks down, the faster the engine will wear. Surely a
generality--definitely hard to prove--and maybe that's why they don't
say so any more on their website!

Glad your summer's not too hot yet--I think we're making up for you down
here. Save us some water, eh?

Rick