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Pertol/gasoline with 2-stroke oil - disposal route

05/28/2008 8:33 AM

An imminent change from a 2-stroke marine outboard engine to a 4-stroke engine on the same craft begs the question of disposal/use of the remaining stock of 2-stroke fuel:

  • what is an acceptable route for the consumption/disposal of unleaded premium-grade petrol/gasoline that has had 1% of 2-stroke oil blended into it?

The quantity involved in this case is about 3.5 litres of 2-stroke mixture, being held in a 12 litre steel tank dedicated to outboard use.

Among the options:

  • blend it into the petrol/gasoline supply to the 4-stroke engine (though at what maximum oil concentration?)
  • ditto to another 4-stroke engine, such as a road vehicle
  • blend it into a polypropylene tank containing 1000 litres of 28-second home heating oil (kerosene)
  • give it to another 2-stroke engine user and enjoy the experience of so doing

What is CR4's considered view on the subject, please?

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#1

Re: Pertol/gasoline with 2-stroke oil - disposal route

05/28/2008 10:46 PM

I just ran mine through my car, poured it in just before filling up.

No problems, and nothing noticable in the exhaust, either.

Allen

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#2

Re: Pertol/gasoline with 2-stroke oil - disposal route

05/28/2008 11:09 PM

Weed whacker. Leaf blower. Your own or a neighbors.

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#3

Re: Pertol/gasoline with 2-stroke oil - disposal route

05/29/2008 12:37 AM

Sell it to another boating buddy, there are sure to be a few around down at the docks.

Or give it away free to some certain CR4 posters, they could blow something up with it.

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#4

Re: Pertol/gasoline with 2-stroke oil - disposal route

05/29/2008 12:58 AM

blend it into the petrol/gasoline supply to the 4-stroke engine (though at what maximum oil concentration?)

one liter of two stroke oil to 40 liters gasoline

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#5

Re: Pertol/gasoline with 2-stroke oil - disposal route

05/29/2008 1:19 AM

Use it as charcoal lighter for your barbecue. It's just about the same thing, unless you used bean oil!

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#6
In reply to #5

Re: Pertol/gasoline with 2-stroke oil - disposal route

05/29/2008 1:39 AM

use 'bean-o'

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#7
In reply to #6

Re: Pertol/gasoline with 2-stroke oil - disposal route

05/29/2008 1:43 AM

Every engineer considers them-self a mechanic and every mechanic just wants to get laid.

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#8
In reply to #7

Re: Pertol/gasoline with 2-stroke oil - disposal route

05/29/2008 1:50 AM

smile, say the first thing that fills the mind and necessity will fill the blanks....

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#10
In reply to #8

Re: Pertol/gasoline with 2-stroke oil - disposal route

05/29/2008 2:03 AM

Necessity never fills the blanks, and I never shoot blanks!

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#13
In reply to #10

Re: Pertol/gasoline with 2-stroke oil - disposal route

05/29/2008 2:23 AM

And not having many kids.... means he he a bit too careful, or is busy with his can of gasoline

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#14
In reply to #13

Re: Pertol/gasoline with 2-stroke oil - disposal route

05/29/2008 2:38 AM

How can you be so sure there aren't a clutch of little vermin running around somewhere? Don't blame me if your children cry out to you in the night. That's what they get their allowance for!

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#28
In reply to #14

Re: Pertol/gasoline with 2-stroke oil - disposal route

06/19/2008 11:53 PM

Allowance? the only allowance I give is the ability to breathe a little longer, or blow stuff up in a big way...

Hey, I'll get rid of the gasoline for you, I have a few rabbit holes to "fumigate"...

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#9

Re: Pertol/gasoline with 2-stroke oil - disposal route

05/29/2008 1:56 AM

forget route three and anything similar.

Best method is to fill your 12 litre tank with straight petrol and run it through your engine; after the new engine is run in, as the oil will stop the rings bedding in properly.

Oil mix is normally either 25:1 or 40:1 depending on the oil and the machine. I'd guess your mix is probably 40:1 which when diluted to the twelve litre mark will come to somehwere round 160:1 which is way to lean to foul the plugs. even 25:1 will dilute to 100:1 which is pretty thin oil.

Do NOT use it for your barby!!! petrol burns as a vapour and vapourises readily at room temperature. YOU WILL EXPLODE!!!!

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#11
In reply to #9

Re: Pertol/gasoline with 2-stroke oil - disposal route

05/29/2008 2:05 AM

Only if you're barbecuing in an enclosed room!

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#12

Re: Pertol/gasoline with 2-stroke oil - disposal route

05/29/2008 2:06 AM

Why don't you just give it or sell it to someone that has a 2-stroke marine engine?

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#15
In reply to #12

Re: Pertol/gasoline with 2-stroke oil - disposal route

05/29/2008 2:58 AM

That's the favourite.

It has the same value-per-unit-volume as Stella Artois (usual disclaimer), which is a useful unit of currency along the river!

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#16
In reply to #15

Re: Pertol/gasoline with 2-stroke oil - disposal route

05/29/2008 3:04 AM

Oh yeah! I forgot! For you guys it's either putt-putt-putt down a river or out to the ocean... No real lakes to speak of, right?

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#17

Re: Pertol/gasoline with 2-stroke oil - disposal route

05/29/2008 4:27 AM

PWSlack

Last option seems best, throw in another 1% mix (as most 2 stroke motorcycles have this ratio(synthetic)) Remember never to mix mineral based with synthetic.

Well thats my vote

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#18
In reply to #17

Re: Pertol/gasoline with 2-stroke oil - disposal route

05/29/2008 4:47 AM

That's an interesting statement, considering here if you ask for synthetic, they'll ask you if you want pure synthetic or synthetic blend!!!

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#19
In reply to #18

Re: Pertol/gasoline with 2-stroke oil - disposal route

05/29/2008 5:14 AM

Ha ha...proves a big difference from 1st to 3rd world countries

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#20

Re: Pertol/gasoline with 2-stroke oil - disposal route

05/29/2008 7:33 AM

PWslack,

Any of those, however, I'd go for #4 in preference.

It is, after all, only 3.5litres. When I read the initial thread description I though you may have had a problem with hundreds of litres.

Cheers,
Stu

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#21

Re: Pertol/gasoline with 2-stroke oil - disposal route

05/29/2008 7:43 AM

Just burn it in a regular 4 stroke engine, for that matter,use it in the new boat engine. it wont hurt it or foul the plugs too bad. Older engines or engines without the modern emissions control systems are better for this purpose, I am not sure how the oil admix would fare with a modern engine's catalytic converter/emissions control system, so to be safe, I'd use it in a lawn mower or older vehicle rather than a brand new one.

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#24
In reply to #21

Re: Pertol/gasoline with 2-stroke oil - disposal route

05/29/2008 9:05 PM

Catalytic converters are used in boats too?

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#25
In reply to #24

Re: Pertol/gasoline with 2-stroke oil - disposal route

05/30/2008 2:57 AM

Bwire,

You're right, he's wrong, they're not. Yet.

It's all coming. And the expense.

Cheers,

Stu.

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#26
In reply to #25

Re: Pertol/gasoline with 2-stroke oil - disposal route

05/31/2008 1:08 AM

Oh, just suck it up and drink the damn stuff, already!!!

Not straight, of course. You'll need a mixer.

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#27
In reply to #26

Re: Pertol/gasoline with 2-stroke oil - disposal route

06/01/2008 6:01 AM

Tastes bl***y awful.

Stu

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#22

Re: Pertol/gasoline with 2-stroke oil - disposal route

05/29/2008 9:31 AM

I assume you bought this fuel some weeks ago.

I suggest you auction it.

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#23

Re: Pertol/gasoline with 2-stroke oil - disposal route

05/29/2008 12:28 PM

Just dump it in the tank of the 4 stroker and go.

The engine won't care. The only possible effect would be fouling of the plugs but you are only talking about 3 1/2 l. By the time you dump that into a tank of gas the percentage of oil will be trivial.... you might even have more water in the tank than oil!

Several years ago I was at home and realized my van was hard on empty - the gage didn't even come up to Empty.

I had about 5 gal of mixed gas and poured it into the van and down the road I went. I couldn't even tell the difference.

I would not even consider blending it with the heating oil (kerosene). I doubt the oil burner would like the gasoline lest you burn the house down.

It is too bad the 2 strokers are being legislated out of existance. I seriously doubt it will make much difference in the water quality of the lakes and rivers they are run on because in reality the oil used in mixed gas is very light and what gets through unburned in the exhaust will disapate.

Travis

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