Is Home Heating Fuel OK of Diesel engine

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Mickey Goodman

I have recently pumped all residual fuel out of my fuel tank, and according, to the Mack Boring folks - the Yanmar distributor, I put the 7 gallons of fuel into my home heating oil tank. Prior to moving the boat to the marina, whould I fill the tank with home heating oil, or wait until I am at the marina. Is home heating oil the same as the diesel fuel that the marina sells? Should I also put in Killem, algaecide, with the fillup? Should I also put any other additive into the tank? This is my first experience with a diesel engine. I did take the Mack Borings one day owners class, which was extremely helpfull.
 
Dec 2, 1999
15,184
Hunter Vision-36 Rio Vista, CA.
It is around here.

Mickey: Home heating oil is the same stuff around here. There was something that was added to diesel fuel for valve lubrication in the last couple of years for lubrication after they reformulated it. I would call your oil people and ask them. They probably deliver to other types of accounts and would know. Add the algaecide everytime you refuel. Only use the recommended amount. My understanding is that too much is almost as bad as not using any (don't know why)? I do not think that Yanmar recommends any other additives other than the algaecide.
 
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Tim

Yeah, but...

The marine style is dyed to show taxes were paid; otherwise its the same. Assuming by moving you mean overland, I'd do it with all empty tanks to minimize the weight on the boat.
 
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G. Richard Stidger

It's not the same

Having had a diesel car for 12 years and having tried using home heating fuel to beat the cost, I can not recommend the practice. My understanding is that engine diesel fuel is more finely filtered, and most important, it has a lower sulfur content. Home oil burners will burn a wide range of #2 diesel without problems. Using engine diesel in your furness is fine, but I would not use home heating fuel in my engine. When I was using home heating fuel in my car, I found that the burn was dirty, more smoke, and a little less power. Also after 10-15,000 miles, I had to have the injection pump rebuilt. I don't know if it was related to the higher sulfur fuel or just at end-of-life anyway, but it happened. I no longer use the home heating fuel in my engine. For the amount of fuel that you use in a year, is it really worth the risk?
 
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Pete

diesel fuel

Diesel fuel and #2 fuel are not the same! In a emergency you can use #2 fuel but constant use will foul you injector. Diesel fuel is more refined and has less varnish buildup. The injectors on your engine and you home furnace are two different animals! Use diesel fuel and treat it !
 
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David Krozier

untaxed #2 diesel fuel oil

Thats what my home heating oil bill says they deliver. Finer filtered G. Richard? Both my marine diesel and my fuel oil burner have fine particulate filters. I don't think filtering has anything to do with it. More refined Pete? Well la-di-da. Mickey. Dump the diesel from you boat tank into your oil burner. I dump all the leftover gasoline from my lawnmower and outboard (yes mixed with 2 cycle oil) into my Jeep at the end of the season. David 'Renegade' H27
 
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Doug

According to the book....

FOr what it is worth.... the Yanmar Operation Manual (which admittedly translates poorly) states; -"for the US - no. 1 or no.2 diesel oil" -"as for further insurance of satisfactory operation, use fuel having less than 0.5% sulfur -"for maximum filter life, sediment and water should not exceed 0.1%" -"the cetane number should be 40 minimum"
 
Dec 2, 1999
15,184
Hunter Vision-36 Rio Vista, CA.
damn doug u did it

Doug: I just love it when someone reads the book and comes up with the REAL FACTS. I guess that they only thing that we really don't know is what are they delivering as home heating oil in the east? Anyone have an answer? Is it No 2 diesel or not.
 
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Philip Teter

Road Tax

#2 Diesel is #2 Fuel oil with Road Tax added. Same fuel, differant price. Phil Force 1
 
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Steve Donahue

I agree with Richard Stidger below

I agree with Richard Stidger below - is it really worth it? I think my fuel bill for my 34 last year was $26 - and all I had to do was tie up at the fuel pump and pump MARINE grade fuel - no problem
 
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Thorp Thomas

Don't use #2

Take it from some one who knows, I'm in the oil burner business. Yes you can burn #2 in you engine, but you'd better have a good water separator and a high grade fuel filter (at least down to 30 microns). #2 oil has a high moisture content and contain puffins to expand the volume. Using it over a long periods of time, expect clogged filters at best and gummed up injector pump and fouled injectors will soon follow. I have to change the oil burner nozzles every year due to the puffins clogging the veins and the grit wearing the orifices. If you could see the condition of the filters that I change every year you wouldn't dream of subjecting your engine to that. The dye in the fuel indicates tax status: Red = heating oil, Yellow = agriculture (road use within 5 or 10 miles of the farm), Green = industrial (non-road use), Clear = over the road use. If the DOT boys catch you with any color in your truck's fuel tank it's a ridiculous fine (something like $1000) plus all the mileage taxes since last report.
 
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Thorp Thomas

It's Paraffin.....

It's time to get a new spell checker.. It's PARAFFIN not puffins. HA HA HA, I crack myself up.... Why is it, you see the mistakes after you hit enter key? Puffin... isn't that the little bird that always smoking in a circle with a line drawn through him? Is this what you'd consider a Freudians slip?
 
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Gene Gruender

junk in eating oil

Someone in the fuel business told me some time ago that they sometimes dispose of other things in the heating fuel oil, like old oil and other contaminates. Heaters most likely don't care. My engine does. If I was that desperate to save a few bucks I'd sail more and motor less. Gene Gruender Rainbow Chaser
 
Dec 2, 1999
15,184
Hunter Vision-36 Rio Vista, CA.
Normally you don't have ANY Choice!!!!

We normally do not have a choice of No. 1 or No.2 diesel at the fuel docks. Our marina and the marinas in the area only sell No. 2. We only have run No.2 in our system over the last 15 years and our system is fairly clean. I have found No.1 diesel in the SF bay area and have run it a couple of times. Never did notice any difference except that it was 20-30 cents a gallon more. As far as adding crap to the fuel, there is no telling if they are doing that to the No. 1 either. Well as they say Buyer Beware.
 
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