The palm oils and heavier/higher gel-point oils hold the most energy
per measure. Local refiner is importing loads of it for their 100
million gallon plant. Making locals unhappy, because we are trying to
grow rape seed, also a much better feed stock than soy.
clay
On Nov 9, 2009, at 3:42 PM, ernest breakfield wrote:
hi Max!
i had the same suspicions about the placebo effect on the
increased fuel economy on those few trucks, but the ones i paid the
most attention to are trucks that are in regular commercial use that
track fuel mileage (like so many of us do). it's been interesting
because they're frequently traveling to sites where they sometimes
have to use ULSD, and can pretty clearly track the changes in fuel
economy when they fill with the different fuels.
FWIW, at least most of them were older Ford work trucks, though i
*think* at least one of them might have been a Dodge/Cummins. (i
don't know my trucks well enough to remember what vintages.)
WRT cold weather use, i've been able to start our 617 running on
B99/100 when it's been parked with snow on the hood for a couple of
days in the Sierra. i know it doesn't get as cold there as it does
where many of our listers live, but this just highlights the point
that the gel point of BioD depends greatly on the oil stock that the
BioD was made from; the stuff we were using at the time was made
from oil used in kitchens in casinos in Reno, so odds are it wasn't
Soy. in the case of B5, i don't think it's likely to make much (if
any) difference.
(FWIW, Soy-based BioD, though much hyped in the US by the NBB and
Soy Growers association, is reportedly not one of the best for
either power output or gel points.)
cheers!
e
Dillon, Meade M CIV SPAWARSYSCEN-ATLANTIC, 53310 wrote:
That's interesting that some users see improved mileage, wonder how
much of that is placebo effect. I suppose that if the injection
timing were 'off' for ULSD then switching fuels might by chance
result in the injection timing at a sweet spot that improves
performance.
Forgot to mention that the B5 cloud point make occur at a slightly
increased temperature, so if you live someplace really cold that
may become an issue. I'm spoiled by living in a land that rarely
sees freezing temperatures...
Take care,
Max
-----Original Message-----
From: mercedes-boun...@okiebenz.com [mailto:mercedes-boun...@okiebenz.com
] On Behalf Of ernest breakfield
Sent: Monday, November 09, 2009 1:32 PM
To: Mercedes Discussion List
Subject: Re: [MBZ] B-5 Diesel Question
hi Max!
yes, it would be more accurate to say "ensure" the lubricity;
the memories of failing injection parts at the onset of the switch
to ULSD are still fresh in my mind. i'd love to believe that the
specs have been changed to "ensure" that is no longer an
issue... ;-)
i agree that there's a tiny drop in power and fuel economy in
most cars when using BioD compared to ULSD; it's not terribly
noticeable in our '85 300D (something less than 10% in our case),
but it's there.
oddly enough, a few folk in the local BioDiesel fleet have found
a slight increase in power/fuel economy, but to my knowledge to
date all of them have been in Amerikun pickup trucks.
cheers!
e
Dillon, Meade M CIV SPAWARSYSCEN-ATLANTIC, 53310 wrote:
Ernest, I think that you meant to say it's enough to 'ensure' that
any lubricity lost in the ULSD switch has been replaced; the ASTM
specifications for ULSD includes one for lubricity, and I think
that B5 (assumption here, we all know what that means) means a
blend of 5% biodiesel (made to that ASTM spec) and 95% #2 ULSD
diesel (made to that ASTM spec).
Bottom line, B5 that is discounted 45 cents vs. #2 ULSD is a good
deal, and I'd buy it for use in my cars. The only thing I'd
predict that hasn't already been mentioned is a very small drop in
fuel economy, as biodiesel has less energy than #2 in my
experience. I've ran a couple tanks of B100 and notice about a
10% drop in miles/gallon, so you probably won't even notice a
change.
Max
-----Original Message-----
From: mercedes-boun...@okiebenz.com [mailto:mercedes-boun...@okiebenz.com
] On Behalf Of ernest breakfield
Sent: Sunday, November 08, 2009 8:06 PM
To: Mercedes Discussion List
Subject: Re: [MBZ] B-5 Diesel Question
B5 isn't strong enough to give you any of the downsides of BioD,
but is enough to replace the lubricity in the fuel that was lost
in the switch to ULSD.
i seriously doubt that it's likely to be strong enough to do
much of anything in the way of cleaning out any built-up gunk in
the fuel lines.
by the time your '92 was made, many companies were already
switching to fuel hoses that are supposed to be BioDiesel-
compatible; odds are yours may be BioD-compatible already, but if
not i wouldn't worry about it anyway.
in my own personal experience and after watching the thousands
of cars in the Biofuel Oasis fleet here in Berkeley, i think the
concerns of BioDiesel use are heavily overblown in the press (and
online forums). when i switched to B100 in our '85 (at ~121K
miles), i changed the fuel filters at each of the next couple of
oil changes, though there was never any indication that there was
any need to.
likewise, i swore i'd keep an eye on the fuel lines (like i
would anyway with any 20-year-old car) and change them when i saw
any indication of any need to; it's been 6 years and 65,000 miles
so far, and i'm still waiting to see any indication of any
impending failure.
bottom line? do it and forget about it; you'll probably never
notice any difference except that it might idle a tiny bit
smoother, and you'll have an extra 45ยข/gallon in your pocket.
cheers!
e
waltlas...@juno.com wrote:
There is a local station here selling B-5 Diesel for 45 cents
less a gal. than pure Diesel. My question is: Can I use that
safely in my 1992 W140 300SD/S350 Diesel, with normal Diesel
hoses, etc?
Walt Lasher
Seattle
1992 S350 Diesel
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