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 Boat Gas.
#12467026
10/16/17 02:00 AM
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Joined: Feb 2007
Posts: 422
FishN@Night
OP
Angler
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OP
Angler
Joined: Feb 2007
Posts: 422 |
I am finally buying another boat and hopefully will have it this week. It has a 2005 Yamaha HPDI 225. What should i be running as additives in the fuel everytime i put gas in the boat? Also if you put in ethanol free gas do you need the additives, and im assuming all motors run on 87.
Last edited by FishN@Night; 10/16/17 03:12 AM.
You Betcha
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Re: Boat Gas.
[Re: FishN@Night]
#12467081
10/16/17 02:50 AM
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Joined: Mar 2005
Posts: 1,382
Freeman Clark
Extreme Angler
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Extreme Angler
Joined: Mar 2005
Posts: 1,382 |
I run Yamaha Ring Free and Bio Bor EB in every tank.Running a 2001 115 Yamaha that has never been in the shop.I decarb every fall.
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Re: Boat Gas.
[Re: FishN@Night]
#12467113
10/16/17 03:35 AM
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Joined: Mar 2003
Posts: 1,349
scruboak
Extreme Angler
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Extreme Angler
Joined: Mar 2003
Posts: 1,349 |
I use 89 octane and seafoam every tank.
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Re: Boat Gas.
[Re: FishN@Night]
#12467238
10/16/17 12:39 PM
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Joined: Aug 2016
Posts: 1,502
T-racer @ Mallard Marine
Extreme Angler
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Extreme Angler
Joined: Aug 2016
Posts: 1,502 |
Run ring free in that HPDI and DO YOUR FILTER MAINTENANCE. Don't want that HPDI blowing up. Check with previous owner about their maintenance too, those motors should require 100 hour maintenance intervals. Lots of people neglect which is a big reason HPDIs blow a lot.
Mallard Marine Nacogdoches, Tx
936-225-3244 - Authorized Sales/Service
Mercury Outboards - Allison Boats
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Re: Boat Gas.
[Re: T-racer @ Mallard Marine]
#12467509
10/16/17 04:44 PM
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Joined: Feb 2007
Posts: 422
FishN@Night
OP
Angler
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OP
Angler
Joined: Feb 2007
Posts: 422 |
Yes he has done all maintenance, and just replaced the high pressure fuel pump, and filters and such. And he has all paper work to document. Is there anywhere to get a maintenance type schedule for these HPDI motors, I definitely dont want to blow it up?
Ring free is the only thing I need to run? Is that a stabilizer also, and does the HPDI run on 87 octane?
You Betcha
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Re: Boat Gas.
[Re: FishN@Night]
#12467835
10/16/17 09:10 PM
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Joined: Jun 2012
Posts: 671
El Skeeter
Pro Angler
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Pro Angler
Joined: Jun 2012
Posts: 671 |
Yamaha 5 Star mechanic recommended 89 octane on HPDI as cheap insurance against detonation damage. As well as the usual
Ring Free and marine stabilizer every fill up.
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Re: Boat Gas.
[Re: FishN@Night]
#12468211
10/17/17 01:35 AM
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Joined: May 2009
Posts: 47
LOSTTEXAN
Outdoorsman
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Outdoorsman
Joined: May 2009
Posts: 47 |
HPDI's run really well on clean, moisture free fuel, and are more susceptible to moisture absorbed by ethanol than most outboards. It will eventually clog the fine filters and injectors.
Ethanol free fuel is absolutely worth using if it is available.
Order of proirity;
1. Ethanol free gas, any octane is better than any ethanol octane. Yamaha says 87 is ok. Go with whatever octane is the freshest available.
2. Synthetic blend or full synthetic oil such as Penzoil varieties will reduce carbon build up from occurring to begin with versus Yamalube that builds more carbon necessitating decarbonizing worries.
3.Regular modest or perioric higher doses of cleaning additives such as Seafoam.
4. Fuel stabilizer such as Stabil if you don't burn through a full tank of fuel within 2-3 months.
Last edited by LOSTTEXAN; 10/17/17 01:52 AM.
Grew up on Tawakoni and Texoma before hybrids and stripers existed on either.
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Re: Boat Gas.
[Re: FishN@Night]
#12468594
10/17/17 01:46 PM
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Joined: Nov 2002
Posts: 4,439
Gamblinman
TFF Team Angler
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TFF Team Angler
Joined: Nov 2002
Posts: 4,439 |
Fresh gas and a good ashless oil.
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