Saving boat gas.

White Rook · 06-30-2010, 11:40 AM

Quote:

Originally Posted by NoBozo

I burn 3.5/4.0 GPH with a 5.7 (350) V8 in a 20 foot Donzi with a 21" Cleaver prop. . The tank is always kept at half full or better. This includes an occasional Speed Run just to blow the carbon out...but I NEVER NEVER exceed the 45 MPH thingy that we can't talk about. NEVER.

NB

Here's the "Formula" that I use to monitor fuel consumption on my 1986 F-242-LS with twin 350's. It's actually quite simple. When the fuel gauge needle moves to the far left, I keep spending money to move the gauge needle back to the far right. There see ..... simple math.

trfour · 06-30-2010, 09:45 PM

Mostly in a five gallon gas can clearly marked [ lawnmower/boat ] stored in the utility shed at the camp, so's any time I got back in from boating late I always had gas enough to make it to Lakeport Landing the next day to refuel.

Terry
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NoBozo · 07-01-2010, 10:00 AM

I never let the gas guage go below 1/2. The first year I had the boat I went out after supper for a little ride. I NOTED the gas guage said I had just a hair over 1/2 tank. That would be half of 40 gallons. No Problem. 30 minutes later I was out of gas. Bummer at night.

Boat gas guages are notoriously inacurate for two reasons: Firstly, the gas tanks are iregularly shaped to fit into confined irregular shaped spaces. So if the guage says you have 1/2 tank..that does NOT mean you have half of the tanks total capacity left.

The second reason is that the electro-mechanical float sensor mechanism in the tank takes a terrible beating, bouncing around in there every time you fly over and into a wave.

Experience is a good teacher..it makes you remember.

Nb

06-30-2010, 09:45 PM	#2
trfour Senior Member Join Date: Nov 2002 Location: The Lakes, Central NH. and Dallas/Fort Worth TX. Posts: 3,694 Blog Entries: 3 Thanks: 3,069 Thanked 472 Times in 236 Posts	Saving Boat Gas... Mostly in a five gallon gas can clearly marked [ lawnmower/boat ] stored in the utility shed at the camp, so's any time I got back in from boating late I always had gas enough to make it to Lakeport Landing the next day to refuel. Terry ________________________________ __________________ *trfour* Always Remember, The Best Safety Device In The Boat, or on a PWC Snowmobile etc., Is YOU! Safe sledding tips and much more; http://www.snowmobile.org/snowmobiling-safety.html

07-01-2010, 10:00 AM	#3
NoBozo Senior Member Join Date: Jun 2008 Location: Portsmouth. RI Posts: 2,231 Thanks: 400 Thanked 460 Times in 308 Posts	Boat Gas Guages I never let the gas guage go below 1/2. The first year I had the boat I went out after supper for a little ride. I NOTED the gas guage said I had just a hair over 1/2 tank. That would be half of 40 gallons. No Problem. 30 minutes later I was out of gas. Bummer at night. Boat gas guages are notoriously inacurate for two reasons: Firstly, the gas tanks are iregularly shaped to fit into confined irregular shaped spaces. So if the guage says you have 1/2 tank..that does NOT mean you have half of the tanks total capacity left. The second reason is that the electro-mechanical float sensor mechanism in the tank takes a terrible beating, bouncing around in there every time you fly over and into a wave. Experience is a good teacher..it makes you remember. Nb