fuel consumption Mercury 402 40HP

fuel consumption Mercury 402 40HP

  • Get a 4-stroke instead of a 2-stoke motor

    Votes: 3 75.0%

  • Get a smaler motor

    Votes: 0 0.0%

  • Go easy on the throtle

    Votes: 1 25.0%
  • Total voters
    4
DutchMerc

DutchMerc

Petty Officer 3rd Class
Joined
Jun 4, 2008
Messages
96
I have a '74 Mercury 402 40HP 2stroke longtail, and i would like to know how much fuel i need for a day out. I am thinking about getting a fuel-tank from 23 Liters. Will this be big enough? I realise that there is not a solid answer for this question, because there is a big difference between "just cruising" and waterskiing for a few urs, but i'd like to get an idea. The boat is a 4.85 mtr polyester Cresent, ~550 Kg.
 
Yepblaze

Yepblaze

Lieutenant Commander
Joined
Jun 1, 2001
Messages
1,686
Re: fuel consumption Mercury 402 40HP

23 litres? try 23 gallons for starters. @ 4 gal per hr that's only 5 hrs.
 
DutchMerc

DutchMerc

Petty Officer 3rd Class
Joined
Jun 4, 2008
Messages
96
Re: fuel consumption Mercury 402 40HP

Do you mean it gonna run 15 liters an hour(=4Gallon)? Is this at ~
2500 rpm?:confused:
 
redfury

redfury

Commander
Joined
Jul 16, 2006
Messages
2,655
Re: fuel consumption Mercury 402 40HP

I dunno, I have 2 six gallon tanks for my 25hp Johnson ( 2 stroke ) and I've gone out twice and am still on the first tank of gas. On sunday, I trolled halfway around a 1700 acre lake, ran around a bit at WOT, trolled a bit more and then we ran back to the launch. If you have access to a removable gas tank, take it out and drive like you plan to use the boat and see what kind of usage you are going to experience with it.
 
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