Single Diesel Fuel burn

rem9607 · **Posted:** Sun Jan 05, 2014 12:31 am

Been looking around at single diesel engine concepts for cruisers. Love my 268 vista, but amazed at the fuel burn these diesels can get. Anyone know of the fuel burn of a 26-28 ft single eng diesel cruiser gets? Cant find info on it anywhere. Im sure its common in Europe. Guessing it losses some of its efficentsy through I/O drives.

This video is mind blowing on fuel burn!! A single engine diesel at 34ft long can range from 10GPH to 1GPH at 5KTs giving it a range over 2Kmiles, imagine the places you can travel with that boat.

http://youtu.be/G2ro4iSAJkM

Fuel burn is at 3:50 mark

rem9607 · **Posted:** Sun Jan 05, 2014 12:36 am

if the fuel burn is that big of a difference with something like the 268 Vista and using the boat for long cruising trips like Lake Michigan/Bahamas where fuel can be limited, its something to know about incase that engine ever blows and your replacing it with another gas engine. Just food for thought.

I think they have fielded the vistas with the volvo diesel D3 or D4 engines, Yanmar is a popular engine for this size boat also

Surface Interval · **Posted:** Sun Jan 05, 2014 11:11 am

Diesels have long been regarded as more fuel efficient than gas engines in many applications. Under load the diesel's fuel burn in gallons per hour can be down to approximately half that of a gas engine. But, diesel fuel is more expensive, and engine maintenance is usually more expensive per hour or mile. This may be offset by service life or other benefits. Many boats can increase range by operating at idle or a little faster. This is one area that diesels do shine. One area of awareness is old fuel in tanks. The somewhat rare possibility of fungal growth in a seldom used diesel and its effect on filters should not be forgotten. Diesels are typically heavier engines per horsepower, and it takes power to move weight. Even with all the negatives, there is still a place for marine diesels and I'd like to see more of them available. As with other new products, some say that new product development moves at the speed of money. Got anextra several million or so to bring something to market?

rem9607 · **Posted:** Sun Jan 05, 2014 12:35 pm

Surface Interval wrote:

Diesels have long been regarded as more fuel efficient than gas engines in many applications. Under load the diesel's fuel burn in gallons per hour can be down to approximately half that of a gas engine. But, diesel fuel is more expensive, and engine maintenance is usually more expensive per hour or mile. This may be offset by service life or other benefits. Many boats can increase range by operating at idle or a little faster. This is one area that diesels do shine. One area of awareness is old fuel in tanks. The somewhat rare possibility of fungal growth in a seldom used diesel and its effect on filters should not be forgotten. Diesels are typically heavier engines per horsepower, and it takes power to move weight. Even with all the negatives, there is still a place for marine diesels and I'd like to see more of them available. As with other new products, some say that new product development moves at the speed of money. Got anextra several million or so to bring something to market?

Its the same with mid size trucks and diesel engines, wish they had them here in the states. Another nice comfort having 80 gallons of diesel on your boat with kids on board, rather then highly flammable GAS. Not really an issue until you have your family on and you can't see the coast line. Paul Walker accident shows ya how fast GAS likes can go up. Never tried it, but I hear you can put a match out in Diesel with out it igniting.

Graham R · **Posted:** Sun Jan 05, 2014 2:26 pm

The FW site has some information ( <customer service>, <brochures>, ,fast facts>.) Looking at the 2009 275 with the D4 ( 300hp) and the 5.7Gi (300 hp) the gph at any given engine RPM is about the same. The gearing is higher for the D4 though, so for any given RPM the boat is travelling faster.

e.g
around 31 mph; diesel 10 gph compared to 14 gph
41 mph; diesel 14 gph compared to 23 gph.

Surface Interval · **Posted:** Sun Jan 05, 2014 3:36 pm

When comparing diesels to gas engines, the diesels are not normally designed to rev up as high as gas engines. Many diesels do not see a 4000 rpm redline. I/O Gas engines redline at any where from 4600 to 6000 in some of the latest models. Many Diesels can normally run at near max rpm all day long, where most operators cringe at the thought of operating I/O gas boat and car engines near max rpm.

Graham R · **Posted:** Sun Jan 05, 2014 5:26 pm

My wife has a 2012 Mazda 3; with a 2.2 litre turbo diesel, 185 HP with huge torque. It's wickedly fast and returns around 45 mpg regardless of .how it's driven. I previously had a Volvp V70 D5 185 HP , which also returned around 42 mpg regardless of how it was driven.

Due to dodgy electronics and an indifferent dealer, I changed the Volvo for a 2006 Ford Mondeo with a supposedly 226 HP Duratec 3.0 V6. It's probably a little quicker than the Mazda and Volvo top end but it has to be driven hard to achieve the performance and achieves around 26 mpg on a run, around 19 mpg on short trips when driven gently! Those figures are for UK gallons, not US ones; 1 US Gallon = 0.8 UK gallon !

My next car and boat will have a diesel engine !

rem9607 · **Posted:** Sun Jan 05, 2014 6:13 pm

Up front cost is higher for a diesel, but over time or even on a used diesel, there are a lot of benefits. A big one is having full tanks of gas with a bbq pit going and not worrying about igniting it. Easy thing to avoid, but is a catastrophic issue and then there is the fuel efficiency that is unbeatable for anyone boating in remote parts of the world/long trips. Daily boaters in lakes probably don't seek this out, but outside the USA, single engine cruisers go way beyond the normal recreational day trips. I have seen young teenagers traveling out of Belize City at sunrise going out for days at a time with just an outboard engine. Pretty safe if you have a back up plan, but if you can go further on less gas thats a plus that I would like- RANGE.

The answer to this is just get a sailboat, but I can't trailer a sailboat 26-30ft long and then theres the rigging it up every time. That size trailerable boat also requires a crane to put it in the water (16-22ft sailboat)

Bliss36 · **Posted:** Tue Jan 07, 2014 11:14 am

Quote:

The answer to this is just get a sailboat, but I can't trailer a sailboat 26-30ft long and then theres the rigging it up every time. That size trailerable boat also requires a crane to put it in the water (16-22ft sailboat)

Here's an option. I've seen these completely customized for long term cruising. A sailboat when you want to sail, and a power boat when you need to get somewhere fast, and a very easily stepped mast. Tow weight is so light you could tow it with darn near anything
http://www.macgregor26.com/

I absolutely love this boat...have spent a lot of time sitting on one at the boat show(Strictly Sail in Chicago)...very high quality shoal draft trailerable cruiser.Tow weight less than the 268 at 6000lbs!
http://www.seawardyachts.com/26rk.shtml

ric · **Posted:** Tue Jan 07, 2014 7:32 pm

You can order a diesel in most Bayliner cruisers and some others. It adds 20k to the price so that's why you don't see any.

rem9607 · **Posted:** Tue Jan 07, 2014 10:25 pm

Bliss36 wrote:

Quote:

The answer to this is just get a sailboat, but I can't trailer a sailboat 26-30ft long and then theres the rigging it up every time. That size trailerable boat also requires a crane to put it in the water (16-22ft sailboat)

Here's an option. I've seen these completely customized for long term cruising. A sailboat when you want to sail, and a power boat when you need to get somewhere fast, and a very easily stepped mast. Tow weight is so light you could tow it with darn near anything
http://www.macgregor26.com/

I absolutely love this boat...have spent a lot of time sitting on one at the boat show(Strictly Sail in Chicago)...very high quality shoal draft trailerable cruiser.Tow weight less than the 268 at 6000lbs!
http://www.seawardyachts.com/26rk.shtml

Great set up Ben, Range Range Range, at the end of the day for the price I paid, I love my 268. Great for kids with the cockpit area. Thats why we went for it and not a sailboat (to much rigging), but later in life I can see myself sailing the Exuma Islands. Sail or power, great in both worlds, can't understand when someone only sees the joy in one (Im thinking trailerable power).

ric · **Posted:** Wed Jan 08, 2014 12:21 am

I absolutely love sailboats, I just don't live in an area that can sustain one. A diesel style cruiser is totally my style. I never even take my boat past 3k rpms.

rem9607 · **Posted:** Wed Jan 08, 2014 5:16 pm

ric wrote:

I absolutely love sailboats, I just don't live in an area that can sustain one. A diesel style cruiser is totally my style. I never even take my boat past 3k rpms.

I feel ya, I use to live in the Destin Florida area, but now mid state mississippi. year round boat in the salt water brings a lot of maintenance with it. Its really nice having your boat near you on a trailer.

Winter Sux · **Posted:** Wed Jan 08, 2014 7:30 pm

ric wrote:

I absolutely love sailboats, I just don't live in an area that can sustain one.

I thought you said you were moving to Miami???????

ric · **Posted:** Thu Jan 09, 2014 7:27 am

Winter Sux wrote:

ric wrote:

I absolutely love sailboats, I just don't live in an area that can sustain one.

I thought you said you were moving to Miami???????

The best part about Miami is cruising to all the bars and restaurants. You could practically live there without ever owning a car. A Vista under 30ft would be freaking perfect.

www.iFourWinns.com

Single Diesel Fuel burn

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