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Go Back   SailNet Community > On Board > Gear & Maintenance > Engines > Diesel > Gas vs. Diesel
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Thread: Gas vs. Diesel Reply to Thread
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Topic Review (Newest First)
10-23-2013 05:39 PM
DosEquis
Re: Gas vs. Diesel

And besides, it lowers your fuel locating problems. As I understand it, you can run a diesel on Crisco now.
10-19-2013 10:54 PM
Osprey 26
Re: Gas vs. Diesel

Diesel usually runs at lower RPM, with lot of torque. 20/30% lower fuel consumption.
Extra weight of solid build engine on sailboat is also plus.
10-19-2013 06:39 PM
Minnewaska
Re: Gas vs. Diesel

Diesel exhaust also has a fraction of the carbon monoxide, compared to gasoline. Much safer.
10-19-2013 06:15 PM
Stu Jackson
Re: Gas vs. Diesel

Take the size of the fuel tank, your average speed, average gph and figure the range to where you want to go frequently. Then you can make a decision.
10-19-2013 03:14 PM
bljones
Re: Gas vs. Diesel

If you plan to do any extended cruising, a diesel is the winner, hands down. Lower maintenance, lower fuel consumption.
10-19-2013 09:29 AM
chuck53
Re: Gas vs. Diesel

Quote:
Originally Posted by DRFerron View Post
Depending on what years you are looking at, I believe that you'll be hard-pressed to find a sailboat built after the mid-80s that has a gas engine. I am sure there are some but not many.

We like the maintenance simplicity of diesel.
Donna hit the nail on the head and especially in the size range you are looking at...gas engines will be few and far between.


It would be nice to hear back from the OP on this.
10-19-2013 01:24 AM
boatpoker
Re: Gas vs. Diesel

Quote:
Originally Posted by mikekomm View Post
I'm planning to purchase a 36-40' boat to live on in one of the marina's in Southern Calif.. I'm new to boating and need help with some basic information. I plan to go on couple excursions per month. One of the local islands is about 165 mile round trip and the other is approx. 50 miles. I know that gas engines are far less expensive and will run far less hours between rebuilds than diesels but what is the number of hours you can run the a gas engine with "average " maintenance? Also, what is the "average" for diesels?

Is there a rule of thumb for the average fuel consumption per mile for gas vs. diesels?

Any help would be appreciated.
Only ever seen one gasoline engine in a boat in that size range most are in much smaller boats (at least in the Great Lakes). Nothing wrong with gasoline engines but curiously in several hundred surveys of gasoline powered sailboats I have never seen one without significant ignition protection issues and engine/fuel compartment ventilation issues..
10-18-2013 11:12 PM
barefootnavigator
Re: Gas vs. Diesel

I will never understand how people get their panties all up in a wad about gas engines and then have propane stoves on their boats, propane is 10 times more volatile than gas!
10-18-2013 09:14 PM
antifiat
Gas vs. Diesel

We were anxious to find a boat in the size range that you are looking. Real bargains can be had for models with gas engines. However we held out to find a better all around vessel that had been refitted with a diesel engine. Many of the points already mentioned should be considered. Mostly is safety and durability. Be patient and you'll find the size boat you want with the best engine choice.
10-18-2013 09:01 PM
smurphny
Re: Gas vs. Diesel

Besides the obvious safety issue, diesel engines are work horses, designed for the constant torque of a boat over many hours. They are either industrial conversions or motors originally used in heavy equipment like tractors or loaders. Most gassers are usually not industrial engines but converted auto designs, never really meant to run under constant load. Diesels have no plugs to foul, wires to get wet, computer modules to fry.

The biggest concern with diesels is keeping the fuel clean.
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