Reply
 
Thread Tools Search this Thread
 
Old 05 April 2016, 07:00   #11
Member
 
Stigomery's Avatar
 
Country: UK - England
Town: Cambridge
Boat name: SIBylle
Make: Honda Honwave
Length: 3m +
Engine: Honda BF20
MMSI: 235915576
Join Date: Oct 2015
Posts: 407
I don't want to derail this conversation too much so apologies to OP if I do... but I have related question that bugs me somewhat... there is lots of talk of "old fuel" per this thread and various issues with engines, carbs, injectors, etc. associated with said fuel.

Now I might be in the minority here, but I have 4 stroke lawnmowers that have run for 15+ years without so much as an oil change never mind the crap petrol that has been thrown in them over the years. They have always started first pull and never given me a moment of trouble.... why is that OBEs seem troubled with "old fuel" and other issues? Or is that just my impression. Is it simply down the abuse they suffer on the open sea? And why such concern about "age of fuel" etc. when this has never (noticeably) affected any of my "land engines"? Perhaps it's a 2-stroke vs 4-stroke thing?
__________________

__________________
Stigomery is offline   Reply With Quote
Old 05 April 2016, 07:47   #12
Member
 
Country: UK - England
Town: Retford
Boat name: Spy-sea-one
Make: Mercury
Length: 3m +
Engine: Suzuki Outboard/25/4
MMSI: 235074042
Join Date: Oct 2011
Posts: 3,574
agree but bit different breaking down on your front lawn than out at sea all about managing the risks, but treatments say it will last for 12 months so end of season treat.
i still use it for the lawn mower etc and top up when i go out in the boat of course you can run it right down before storing.

cheers
__________________

__________________
jeffstevens763@g is offline   Reply With Quote
Old 05 April 2016, 08:08   #13
Member
 
Country: UK - Scotland
Town: north ayrshire
Boat name: charlie girl
Make: reiver 3.8/regal3760
Length: 10m +
Engine: 40hp 2st 2x6lp 315
Join Date: Jul 2009
Posts: 1,505
Stigomery In 40 years of boating I've never had a problem with old fuel even in 30 years in the motor trade I never had a problem with old fuel even old cars we dragged out of barns and garages managed to Burst into life without changing fuel (Assuming no other problems)
I'd suspect people who have had issues with old fuel ( last seasons) have actually had a problem with a bit of dirt in there carb or solidified oil left when the petrol has evaporated & after messing around changing fuel etc the engine has run but quite likely had they persevered the engine would have run anyway.
I'd imagine there is some substance in the myth that old fuel is no good in that in certain circumstances the fuel can deteriorate but I'm my opinion they are few and far between.
As I said earlier I was told it was the more volatile portion or the fuel that degrades so if it starts initially then your probably going to be fine.
No doubt I'll be shot down in flames for daring to state that old fuel problems are somewhat of an urban myth but that's my experience & belief
__________________
beamishken is offline   Reply With Quote
Old 05 April 2016, 08:50   #14
RIBnet admin team
 
willk's Avatar
 
Country: Ireland
Make: Redbay Boats
Length: 9m +
Engine: 370hp
Join Date: Feb 2008
Posts: 12,928
RIBase
Quote:
Originally Posted by beamishken View Post
No doubt I'll be shot down in flames for daring to state that old fuel problems are somewhat of an urban myth but that's my experience & belief
...it's an explosive topic ATM.

__________________
"Who knows what evil lurks in the hearts of men?"
.
willk is offline   Reply With Quote
Old 05 April 2016, 09:10   #15
Member
 
dave3235's Avatar
 
Country: UK - England
Town: Bristol
Boat name: Salty Cheeks
Make: Honwave
Length: 3m +
Engine: 20hp 2stroke Mariner
Join Date: Mar 2014
Posts: 449
Quote:
Originally Posted by mixyblob View Post
Thanks for your replies gents, I think I'll just add a bit of the old fuel to each tank of fresh.
Wasn't sure if the old petrol could damage the engine but you have put my mind at ease thanks.
Jim
Hi all

I had herd that the 2 stroke oil if premix starts to seperate,also moisture is atracted to petrol.Stored,fill your tank to brim will eliminate the moisture side of things or lesson it.
__________________
dave3235 is offline   Reply With Quote
Old 05 April 2016, 09:35   #16
Member
 
Country: UK - Scotland
Boat name: Wildheart
Make: Humber/Delta Seasafe
Length: 5m +
Engine: Merc 60 Clamshell
MMSI: 235068449
Join Date: Apr 2007
Posts: 4,611
I have happily run a premix 2- stroke on premix petrol we later realiaed was 8 years old..... OK, it smoked a bit as I suspect the relative evaporation of the fuel & the TCW3 had turned it from 50:1 to something more akin to "Seagull mix" but we had a good day's boating on that can... and the engine started 2nd pull.
__________________
9D280 is offline   Reply With Quote
Old 05 April 2016, 12:41   #17
Member
 
Country: UK - Wales
Town: Cardiff
Make: Avon
Length: 3m +
Engine: 2 stroke
Join Date: Aug 2014
Posts: 853
I have run old fuel in all manner of things from mowers to outboards and all sorts between and not had an issue but that doesn't mean it's a good idea....
__________________
HDAV is offline   Reply With Quote
Old 05 April 2016, 13:00   #18
Member
 
chipko's Avatar
 
Country: UK - England
Make: XS500
Length: 5m +
Engine: Mariner60 Honda2.3
MMSI: 239711398
Join Date: Sep 2013
Posts: 392
Although I've never had a problem, I think the modern unleaded ethanol-mix fuels are far more prone to absorbing water vapour and separation than the old leaded fuels.
As I do not winterize (fire up monthly usually if I remember) or drain down the fuel systems after each use I now stabilize all fuel at point of purchase for peace of mind. Over the season I use Quicksilver Quickare and over winter Quicksilver Quickstore.....cost is negligible over the year. Probably overkill as always use fresh fuel with any leftover going into car/mowers etc. and fuel left in the lines, carbs, injectors etc. is already pre-treated anyway.
__________________
chipko is offline   Reply With Quote
Old 06 April 2016, 04:46   #19
Member
 
steco1958's Avatar
 
Country: UK - England
Town: West Bromwich
Boat name: Ellie V
Make: Excel Voyager 520
Length: 5m +
Engine: Evinrude 75 HP
MMSI: 235 908 287
Join Date: May 2012
Posts: 680
Quote:
Originally Posted by Stigomery View Post
I don't want to derail this conversation too much so apologies to OP if I do... but I have related question that bugs me somewhat... there is lots of talk of "old fuel" per this thread and various issues with engines, carbs, injectors, etc. associated with said fuel.

Now I might be in the minority here, but I have 4 stroke lawnmowers that have run for 15+ years without so much as an oil change never mind the crap petrol that has been thrown in them over the years. They have always started first pull and never given me a moment of trouble.... why is that OBEs seem troubled with "old fuel" and other issues? Or is that just my impression. Is it simply down the abuse they suffer on the open sea? And why such concern about "age of fuel" etc. when this has never (noticeably) affected any of my "land engines"? Perhaps it's a 2-stroke vs 4-stroke thing?

I'm with you on this, I'm considering a 1st service on my lawnmower, 12 years old
__________________

__________________
A bad day on the boat is better than the best day at work.
https://www.justgiving.com/RIOW2016
https://www.justgiving.com/Richard-Nash8
steco1958 is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 02:17.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.