outboard oil in diesel

is it a good idea to mix outboard oil or atf in diesel to add lub ability to fuel ?? how much per 100 gal

I've been mixing two cycle in to the diesel fuel for my JD4320 for five years now. About 3oz every fill up.

The injector pump would stick and when idled down it would die. Not good on a hot turbo engine. I'd have to knock on the pump to restart and even had to tear into the pump once.

The two cycle oil cured it.

On Fordtrucks.com there was a guy who tested all kinds of additives to see which got the best mileage. He tried ATF, motoroil, power service, lucus, Marvel, and some others I can't remember. Two cycle won for him.

Why do you think you need more lube? Is what it will do "adding a oil" Is increase the specific gravity of the fuel, and is what that will do is increase the HP. Is what we used to do to our service trucks with computer engines is add a quart of used motor oil to about 40 gal, of fuel. Helped plenty, Again , why do you think you need more lube???

Maybe because they cut way back on the sulphur, which used to be the lube. Could help, can't hurt. Why not? Maybe by adding something we'll offend the fuel manufacturers and they'll quit selling to us?

New John Deere tractors leave the factory with Bio-Diesel in the tank does that answer the question.

The pump fuel you buy all ready has the additives in it to improve lubricity that was removed by the process used to remove the additional sulfur.
I would use a diesel additive rather than two stroke oil but it"s your $"s, your engine, your call.

(quoted from post at 17:36:17 09/08/13) New John Deere tractors leave the factory with Bio-Diesel in the tank does that answer the question.

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I would say not since because the question is diesel as opposed to diesel going into new JDs. You have to look at what diesel the engine was built to run on. I would not dare to go without added lubricant in a diesel engine built for high sulfur fuel. I use two stroke oil myself, because it is formulated to both lubricate and burn.

None issue.
Refineries added extra injection pump lubricant a few months after ULS diesel was introduced.
Some people just feel compelled to pour magical elixers into thier machines and expect miraculous results.

The main ingredient in 2 cycle oil is Jet A........IE really clean diesel. Won't hurt a thing. I use a quart mixed into 50 gallons every now and then

I throw in a little oil every time I fill up the diesels lately. I figure it won't do any harm and might do some good. None of my diesels are any newer than 1992. I have used 2 cycle oil, power steering oil, atf, probably a few other odd bits of leftover oil I have had around the farm for years.

I use Lucas semi-synthetic 2-cycle oil at the rate of 1 quart per 50 gallon, and I use Power Service also. In 14 years here on the farm and 2 diesel tractors, never put a wrench on an injector, never pulled a pump, never had an algae problem, never had a water problem. Tom

I use 2 stroke oil because of the wimpy Stanadyne injector pump in my M-1031 mil pick-up truck.. Those pumps are known to bail prematurely due to internal wear from "dry" fuel.. About 4 to 5 oz. per fill up..

I put up a link to a fuel test put together by some guys from the turbo diesel registry in another post real recent-like here. I should bookmark it. Most additives, including used motor oil and marvel mystery oil, were proven to be nothing but snake oil, and most of what was tested proved to be bad for the system.

When I started using 2-stroke in my 90 Cummins I didn"t notice any change in fuel mileage, but it started to run quieter, and it started to put a little smoke out the pipe again on winter blend.

Snake oil MUST work; ever hear a squeaky snake?

Found it again.

They used untreated fuel for the tests, what refinery-treated fuel actually tests at, I don"t know. For all a bottle of 2-stroke costs, I figure it"s cheap insurance.

The engine manufacturers would like to see the testing score under 460, and 2-stroke alone brings it down to within the margin of error of the test.
fuel additive test results

(quoted from post at 18:04:24 09/08/13) .............
Refineries added extra injection pump lubricant a few months after ULS diesel was introduced............

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yeh & they do that after thy have texted tere girlyfriend - 'they' are spposed to do alot of things but i don't no if they do or not and it wont hurt to back themup with sum of your own stuff

It certainly cannot hurt and has been proven to help when the diesel fuel has low-lube. Do you trust every fuel seller to be putting the proper lube additives in? I don't and I don't think modern fuel makers are very concerned about older machines with rotary distributor-type mechanical fuel injection pumps.

New York recently switch all the heating oil and farm/off-road diesel to low-sulfur. The seller I buy from puts the additive heating oil if it gets sold for engine-fuel.

Tests have been done and I believe them. Buy two-stroke-cycle oil at Walmart in gallon jugs and it gives the best added lube protection for the buck. Mix at a 200 to 1 ratio.

THE RESULTS:

These results are listed in the order of performance in the HFRR test. The baseline fuel used in every test started at an HFRR score of 636. The score shown is the tested HFRR score of the baseline fuel/additive blend.
Also included is the wear scar improvement provided by the additive as well as other claimed benefits of the additive. Each additive is also categorized as a Multi-purpose additive, Multi-purpose + anti-gel, Lubricity only, non-conventional, or as an additive capable of treating both gasoline and diesel fuel.
As a convenience to the reader there is also information on price per treated tank of diesel fuel (using a 26 gallon tank), and dosage per 26 gallon tank provided as “ounces of additive per 26 gallon tank”.

In Order Of Performance:

1) 2% REG SoyPower biodiesel
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

4)Opti-Lube Summer Blend
Multi-purpose
demulsifier
HFRR 447, 189 micron improvement
3000:1 ratio
1.11 oz/tank
$0.68/tank

5)Opti-Lube Winter Blend
Muti-purpose + anti-gel
cetane improver
HFRR 461, 175 micron improvement
512:1 ratio
6.5 oz/tank
$3.65/tank

6)Schaeffer Diesel Treat 2000
Multi-purpose + anti-gel
cetane improver, emulsifier, bio-diesel compatible
HFRR 470, 166 micron improvement
1000:1 ratio
3.32 oz/tank
$1.87/tank

7)Super Tech Outboard 2-cycle TC-W3 engine oil
Unconventional (Not ULSD compliant, may damage 2007 or newer systems)
HFRR 474, 162 micron improvement
200:1 ratio
16.64 oz/tank
$1.09/tank

8)Stanadyne Lubricity Formula
Lubricity Only
demulsifier, 5% bio-diesel compatible, alcohol free
HFRR 479, 157 micron improvement
1000:1 ratio
3.32 oz/tank
$1.00/tank

9)Amsoil Diesel Concentrate
Multi-purpose
demulsifier, bio-diesel compatible, alcohol free
HFRR 488, 148 micron improvement
640:1 ratio
5.2 oz/tank
$2.16/tank

10)Power Service Diesel Kleen + Cetane Boost
Multi-purpose
Cetane improver, bio-diesel compatible, alcohol free
HFRR 575, 61 micron improvement
400:1 ratio
8.32 oz/tank
$1.58/tank

11)Howe’s Meaner Power Kleaner
Multi-purpose
Alcohol free
HFRR 586, 50 micron improvement
1000:1 ratio
3.32 oz/tank
$1.36/tank

12)Stanadyne Performance Formula
Multi-purpose + anti-gel
cetane improver, demulsifier, 5% bio-diesel compatible, alcohol free
HFRR 603, 33 micron improvement
480:1 ratio
6.9 oz/tank
$4.35/tank

13)Used Motor Oil, Shell Rotella T 15w40, 5,000 miles used.
Unconventional (Not ULSD compliant, may damage systems)
HFRR 634, 2 micron improvement
200:1 ratio
16.64 oz/tank
price: market value

Just because you haven't had a problem, doesn't mean your additive is responsible for your good fortune. People generally believe what they want to believe.