Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 25-04-2011, 16:04   #16
Registered User

Join Date: Jul 2010
Location: Geismar, LA near Baton Rouge
Boat: Vamos, a Ranger 28 Tall Rig
Posts: 145
Images: 1
Re: Putting Crankcase Oil in Diesel Tank

Generally, many who use veggie oil for their diesel will also add waste engine oil. They run it through filters and titrate it for the proper thickness so that it will be the right consistency. I have not hear of any problems with doing that.
__________________

__________________
WillJacocks is offline   Reply With Quote
Old 25-04-2011, 16:39   #17
Senior Cruiser

Cruisers Forum Supporter

Join Date: Aug 2009
Location: between the devil and the deep blue sea
Boat: a sailing boat
Posts: 17,314
Re: Putting Crankcase Oil in Diesel Tank

And why bother with some stupid fuel filters at all? They add cost, complication and fuss, while we all know they are not really necessary.

My father had a tractor once and ...

;-)
b.
__________________

__________________
barnakiel is offline   Reply With Quote
Old 25-04-2011, 16:49   #18
Registered User
 
doug86's Avatar

Join Date: Nov 2009
Location: Between Block Island and Bahamas
Boat: Marine Trader 40' Sedan Trawler, 1978. WATER TORTURE
Posts: 715
Re: Putting Crankcase Oil in Diesel Tank

for that matter, why bother changing the oil?

my uncle was a truck driver....
__________________
"When one is willing to go without, then one is free to go." - doug86
doug86 is offline   Reply With Quote
Old 25-04-2011, 17:00   #19
Registered User

Join Date: Aug 2008
Posts: 238
Re: Putting Crankcase Oil in Diesel Tank

Quote:
for that matter, why bother changing the oil?
Absolutely agree. In my younger days I had a car that burned a quart of oil every 600 miles. I added a quart every 600 miles. Every 3000 miles I had put in 5 quarts of new oil so there was never a need for an oil change.
__________________
Failure is most often times a temporary condition........
Giving up is what makes it permanent.



Bill Burgette is offline   Reply With Quote
Old 25-04-2011, 18:36   #20
CF Adviser
 
Bash's Avatar

Cruisers Forum Supporter

Join Date: Dec 2008
Location: sausalito
Boat: 14 meter sloop
Posts: 7,260
Re: Putting Crankcase Oil in Diesel Tank

A buddy of mine was one of the original engineers at Hewlett Packard. He rigged an oil pump on his powerboat so that it would pump oil straight out of the engine into his fuel tank whenever he needed to change the oil. Didn't even bother to filter it.

One day, when I was walking up the dock with five gallons of spent oil that I'd just pumped out of my boat, he took the oil off my hands and poured it into his diesel Mercedes Benz. I was shocked, but he told me that he'd been doing this for years, and that the Mercedes had half a million miles on the odometer without the engine ever having broken down.

After that, I gave him all my used oil.
__________________
cruising is entirely about showing up--in boat shoes.
Bash is offline   Reply With Quote
Old 25-04-2011, 21:16   #21
Registered User

Join Date: Oct 2009
Posts: 323
Re: Putting Crankcase Oil in Diesel Tank

Farmers have done it for years on diesel pumps / generators but they also have very large fuel tanks 500+ gallons, if I were going to have my fuel polished that day before it ran through the engine I'd do it. This could be why there are farmers that have ford Lehman 120's with 30,000+ hours on them. Never seen one with that many in a boat.
__________________
Chipg is offline   Reply With Quote
Old 25-04-2011, 21:46   #22
Registered User
 
sww914's Avatar

Join Date: May 2009
Location: Punta De Mita
Boat: Vagabond 39 Hull # 1
Posts: 1,842
Re: Putting Crankcase Oil in Diesel Tank

I want that dirt to go away, not be continually concentrated in the engine that I depend on.
This is like saying it's OK to get stumbling drunk and then drive every single night because my bonehead neighbor has done it successfully for a number of years. It's a stupid idea in spite of an occasional success story.
__________________
sww914 is offline   Reply With Quote
Old 25-04-2011, 21:52   #23
Registered User
 
psneeld's Avatar

Join Date: Oct 2010
Location: Avalon, NJ
Boat: Albin 40 double cabin Trawler
Posts: 1,831
Re: Putting Crankcase Oil in Diesel Tank

Quote:
Originally Posted by sww914 View Post
I want that dirt to go away, not be continually concentrated in the engine that I depend on.
This is like saying it's OK to get stumbling drunk and then drive every single night because my bonehead neighbor has done it successfully for a number of years. It's a stupid idea in spite of an occasional success story.
Quote one instance where it has hurt...

again...most are not talking a 50/50 mix but adding less than 1% by volume...which may be the difference from buying fuel from one marina to the next in terms of clean fuel.

And who says the oil is full of dirt? Yes some combustion byproducts...so what's the harm? any quotable studies that actually show the harm???

I've never seen one. The motor oil may actually reduce the lubricity which could be bad...but again at the 1 or less percent occasionally...where's the beef to claim it's harmful?
__________________
psneeld is offline   Reply With Quote
Old 25-04-2011, 22:41   #24
Registered User
 
sww914's Avatar

Join Date: May 2009
Location: Punta De Mita
Boat: Vagabond 39 Hull # 1
Posts: 1,842
Re: Putting Crankcase Oil in Diesel Tank

I can't quote one instance where it has been harmful. I don't know for sure because I haven't done any studies. Have you? I said it sounds like a stupid idea. He asked for opinions and I gave mine, how did that ruffle your feathers?
__________________
sww914 is offline   Reply With Quote
Old 26-04-2011, 05:08   #25
Senior Cruiser
 
Blue Stocking's Avatar

Cruisers Forum Supporter

Join Date: Dec 2008
Location: St. Georges, Bda
Boat: Rhodes Reliant 41ft
Posts: 4,114
Re: Putting Crankcase Oil in Diesel Tank

Aaahhh!!-for the good old days when fuel came with ZDDP, tetra-ethyl lead--and we added molybdenum di-sulphide (Molyslip)

Those of us who are involved with 60's sports cars ( Cobra for me) with big cube V-8s can tell you what problems we have with flat tappet cams wearing because of the eco-friendly oils.
i2f-where are you
__________________
so many projects--so little time !!
Blue Stocking is offline   Reply With Quote
Old 26-04-2011, 05:23   #26
Moderator
 
Pete7's Avatar

Cruisers Forum Supporter

Join Date: Aug 2009
Location: Solent, England
Boat: Moody 31
Posts: 8,551
Images: 14
Re: Putting Crankcase Oil in Diesel Tank

Quote:
Originally Posted by psneeld View Post
And who says the oil is full of dirt? Yes some combustion byproducts...so what's the harm? any quotable studies that actually show the harm???
Surely one of the ways to check the condition of an engine is to have the oil analysed regularly to see what the metal content is and if it's getting worse.

Our local injection pump specialist has gone to great lengths to provide a clean environment to work on diesel pumps so I wouldn't be too keen to undo his work by pouring old oil with metal into a tank and then run it through a diesel pump.

In an old worn out tractor it's probably quite a good environmentally way of getting rid of old oil, any extra wear is probably unnoticeable.

We don't have enough old engine oil each year to make it worth worrying about. Goes to the recycling dump into there large drum.

Pete
__________________
Moody 31 - April Lass
Pete7 is offline   Reply With Quote
Old 26-04-2011, 05:25   #27
Freelance Delivery Skipper..
 
boatman61's Avatar

Community Sponsor
Cruisers Forum Supporter

Join Date: Jan 2010
Location: UK/Portugal
Posts: 20,203
Images: 2
Send a message via Skype™ to boatman61
pirate Re: Putting Crankcase Oil in Diesel Tank

Quote:
Originally Posted by sww914 View Post
I want that dirt to go away, not be continually concentrated in the engine that I depend on.
This is like saying it's OK to get stumbling drunk and then drive every single night because my bonehead neighbor has done it successfully for a number of years. It's a stupid idea in spite of an occasional success story.
Could it be that... contrary to your belief that folks who do this are dumb... just maybe they're not... maybe they leave it to settle then pour of the top 90%... leaving the detrius in the bottom of the container...
Bit like red wines.... never empty the bottle into your glass... leave the last 1/2 inch with all the settled tannin in the bottle for the moron who wants the bad hangover in the morning...
Theres a right way and a wrong way... its not always the preactice at fault.. more often its the technique...
boatman61 is offline   Reply With Quote
Old 26-04-2011, 05:39   #28
Registered User
 
psneeld's Avatar

Join Date: Oct 2010
Location: Avalon, NJ
Boat: Albin 40 double cabin Trawler
Posts: 1,831
Re: Putting Crankcase Oil in Diesel Tank

here's one studies results...

DIESEL FUEL LUBRICITY ADDITIVES
STUDY RESULTS
By
Arlen Spicer

August 2007

13) Used Motor Oil, Shell Rotella T 15W-40, 5,000 miles used.
Unconventional
(Not ULSD compliant, may damage systems)

HFRR 634, 2 micron improvement (statistically insignificant change)

200:1 ratio
16.64 oz/tank


price: $0.00

While it say it "may" damage systems...there was none noted in the study that was geared towards using the used motor oil as a "lubricity" improver....also note that it was added at a 200:1 ratio.

for those that care about their diesels, here were the top 3 additives...


1) 2% REG SoyPower bio-diesel
HFRR 221, 415 micron improvement.
50:1 ratio of baseline fuel to 100% biodiesel
66.56 oz. of 100% biodiesel per 26 gallons of diesel fuel
Price: market value



2) Opti-Lube XPD
Multi-purpose + anti-gel
Cetane Improver, Demulsifier
HFRR 317, 319 micron improvement.


256:1 ratio
13 oz/tank
$4.35/tank



3) FPPF RV, Bus, SUV Diesel/Gas Fuel Treatment
Gas and Diesel
Cetane improver, Emulsifier
HFRR 439, 197 micron improvement


640:1 ratio
5.2 oz/tank
$2.60/tank


__________________
psneeld is offline   Reply With Quote
Old 26-04-2011, 05:53   #29
Moderator Emeritus
 
GordMay's Avatar

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 31,579
Images: 240
Re: Putting Crankcase Oil in Diesel Tank

Thanks, psneeld.

DIESEL FUEL LUBRICITY ADDITIVES STUDY RESULTS By Arlen Spicer
http://rivrdog.typepad.com/files/cop...-version-3.pdf

Or ➥ Lubricity Additive Study Results - Diesel Place : Chevrolet and GMC Diesel Truck Forums
__________________
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"



GordMay is offline   Reply With Quote
Old 26-04-2011, 06:13   #30
Sponsoring Vendor
 
Tellie's Avatar

Community Sponsor

Join Date: Oct 2007
Location: Hollywood, Fl.
Boat: FP Athena 38' Poerava
Posts: 3,046
Re: Putting Crankcase Oil in Diesel Tank

If I thought it was good for my diesels, which I do not, I would be adding new clean oil.
Tellie is offline   Reply With Quote
Reply

Tags
diesel

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Diesel in FW Tank ! lockie Plumbing Systems and Fixtures 9 17-05-2011 02:29
Diesel Tank Configuration (Sublevel Tank no.2) erasmos Engines and Propulsion Systems 2 14-04-2011 14:57
Diesel Oil candycat Engines and Propulsion Systems 15 30-08-2010 19:10
Stove Oil vs Furnace Oil vs Diesel outdoor Engines and Propulsion Systems 5 04-04-2010 19:00
Getting Lube Oil out of Diesel Tank girnybairn Construction, Maintenance & Refit 10 22-12-2009 06:58



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 21:46.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.