| Author |
Message |
    
peter
New member
Username: pueter66
Post Number: 3
Registered: 03-2008
| | Posted on Sunday, April 19, 2009 - 05:58 am: | 
|
Hi Guys, I have some old fuel in my boat approx 3 months old. will it hurt my motor if i use it.
Can i use an octane booster. I have a honda 175.
It is a real pain to drain the fuel out of the under floor tanks. cheers pete |
W D Neal
Member
Username: chawk_man
Post Number: 69
Registered: 09-2008
| | Posted on Sunday, April 19, 2009 - 08:06 am: |
|
Tough call. That gas is probably in pretty bad shape unless you live in an arid area. If you have a good external fuel-water seperator, I would install a new filter and also clean out the fuel water seperator on the engine very well. Then run the engine on that old gas for a couple of hours, then do a thorough inspection of both. If you detect and significant amount of water or sludge, then drain the tank. |
peter
Member
Username: pueter66
Post Number: 4
Registered: 03-2008
| | Posted on Sunday, April 19, 2009 - 10:12 am: |
|
Thanks mate I do live in a arid area, I will give that a go. Cheers Pete |
Bob Vialle
Member
Username: bobmech
Post Number: 21
Registered: 07-2008
| | Posted on Sunday, April 19, 2009 - 06:57 pm: |
|
Fuel that is 3 mths old & not treated with a stabilizer can cause "pinging" & piston damage, so would recommend octane booster. |
Nick Nichols
Member
Username: pailolo
Post Number: 62
Registered: 09-2008
| | Posted on Wednesday, April 22, 2009 - 12:00 pm: |
|
Old fuel means lower octane and possible contamination due to the condensation that occurs with time. If you are going to run the fuel, I would top off the tank with fresh, higher octane fuel and add a product like Seafoam to help condition the fuel. Make sure you have a good water separating fuel filter. Only run the motor at a lower speed and listen closely for engine ping. Always top off your fuel tank after each use, to keep the fuel from deteriorating as quickly. |
peter
Member
Username: pueter66
Post Number: 5
Registered: 03-2008
| | Posted on Thursday, April 23, 2009 - 06:08 pm: |
|
Nick Nicholas
Hi Mate I will look into the Seafoam product and hopefully we have it here in Australia.
Top off the tank do you meen refill it immediatly?
I do that.
I will drain half the fuel off and run it in something else and top up tank with high octane fuel. Cheers Pete |
Nick Nichols
Member
Username: pailolo
Post Number: 64
Registered: 09-2008
| | Posted on Thursday, April 23, 2009 - 06:36 pm: |
|
Good plan!
Nick |
Jon
Member
Username: fisho65
Post Number: 13
Registered: 02-2009
| | Posted on Saturday, April 25, 2009 - 07:43 pm: |
|
G'day Pete. Mate, ive looked ( breifly ) for seafoam and cant find it here, Castrol make a product called Fuel Doctor, I use it on every service i do, mostly coz of extremlly poor quality of fuel we have up here, and the fact that the humidity kills fuel very rapidly. If your gonna leave the boat unused for over 2 months, only use premium ulp as it has about twice the *shelf life *
of regular unleaded. I must rebuild 3-4 sets of carbies every week, and all due to fuel contamination/quality.. also drain the carbs ( via the bowl drain screws) after use, this will prevent the fuel remaining in the bowls from going off and leaving a nasty residue, which fresh fuel will NOT remove. Good luck . |
peter
Member
Username: pueter66
Post Number: 6
Registered: 03-2008
| | Posted on Saturday, April 25, 2009 - 07:53 pm: |
|
Thanks Jon I will look for those bowl drain screws. The castrol product what does it actualy do or prevent? I live in Central queensland so we get a fair bit of humidity, not like Cairns or Darwin but still considerable through summer.
Cheers Pete |
joel cunningham
New member
Username: joelc
Post Number: 3
Registered: 10-2009
| | Posted on Thursday, October 15, 2009 - 11:06 pm: |
|
yes |
