jbweston
Well-Known Member
Certainly not down a surface water drain as it's polluting and potentailly explosive, specially in hot weather. Why not just use it for what it is, fuel? So in a car petrol tank.
Disposing of 2T Petrol
- Thread starter Stemar
- Start date
Elessar
Well-Known Member
Less if you throw a match on it!
WoodyP
Well-Known Member
Do not use marine specification two stroke oil which is designed to go in a water cooled outboard into an air cooled strimmer or chainsaw motor. They seize up. As I found out, by experience.
Solent sailer
Well-Known Member
very true, i have used it for cleaning bearings, old winches and also just shaken it up and put it back in the outboard!
Refueler
Well-Known Member
You must have been using hell of a lot of 2TW then ...
The answer lies in mixing it with your usual brew. OR using as I do - the 2T oil that is designed for BOTH uses ...
Todays tech has moved on from those old days .. 2T is more like Multigrade now with both air and water cooled catered for with same 2T ... you just have to look more careful at label to identify it. Yes you can still buy the separate types.
WoodyP
Well-Known Member
I was using a lot on woodland management and it was specifically marine specification 2stroke oil that caused the problem. Pleading guilty to stupidity.
Stemar
Well-Known Member
Thanks everyone. The issue with keeping it for other purposes is that I only have one container of a size to hold it and I need that for the new fuel. It'll go in the car once I get to the pump to fill up.
Rappey
Well-Known Member
So why not use the 2t in your mariner 4t ?
WoodyP
Well-Known Member
Stemar, a new container isn't going to break the bank. Let the moths out your wallet 
Stemar
Well-Known Member
Half Jewish, half Yorkshire - the very idea brings on palpitations!
dunedin
Well-Known Member
I hadn’t heard this before, but bow to your specialist knowledge. I generally try to be very careful about the diesel fuel for our recent Volvo (D2-55), but have also ended up struggling to dispose of last year’s outboard fuel. So you are confident this would be fine (3-4 litres in amongst a 120 litre diesel tank) - particularly as it tends to be pre-winter when need to dispose of it.
Refueler
Well-Known Member
For me - no problem at all ..... its an old trick to winterise summer diesel .....
4ltrs in 120ltrs ? that's 1in30 mix ... shouldn't be any problem.
But why are you disposing of last years fuel ? Good shake up of can ... throw in fresh gasoline and use it ... if you mix old with new 50-50 - you'll be fine for outboard ... but make sure you shake up the old fuel before mixing.
dunedin
Well-Known Member
Great thanks, very helpful.
Our old 2 stroke outboard seems to run very reliably on fresh fuel each year, but difficult to start on last year’s. And typically only use a small amount of fuel each year, so buying 5L new fuel each spring seems a useful investment.
Refueler
Well-Known Member
Only this year did I have a problem with my Outboard (Mariner 20 2str) .......... I stupidly connected up tank and primed carb without shaking tank first ........... so she got a carb full of heavy ends !! Few caps of fuel thrown into airway and keep starting her ... and finally cleared the carb ... she ran fine.
My Johnson 4.5 had similar from dregs of fuel in tank ... but shot of old / new mix in and give it a shake ... she fired up .. died ... kept plugging at her .. 5 or 6 starts and she's now fine ..
I never waste fuel ! usually I remember to shake can before use ... this year I didn't !! But I still used the old fuel up ...
My Johnson 4.5 had similar from dregs of fuel in tank ... but shot of old / new mix in and give it a shake ... she fired up .. died ... kept plugging at her .. 5 or 6 starts and she's now fine ..
I never waste fuel ! usually I remember to shake can before use ... this year I didn't !! But I still used the old fuel up ...