Forgot if I mixed oil with fuel...easy test?
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Category: General Forums
Forum Name: The Boat Shed
Forum Description: Discuss all things boating.
URL: https://www.fishing.net.nz/forum/forum_posts.asp?TID=115372
Printed Date: 10 Jun 2026 at 3:56am
Topic: Forgot if I mixed oil with fuel...easy test?
Posted By: Cpt.Pugwash
Subject: Forgot if I mixed oil with fuel...easy test?
Date Posted: 14 Jan 2016 at 7:43am
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I'm not sure if I mixed my 50/1 oil/petrol mix. Is there a way to check this out? Thanks.
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Replies:
Posted By: [email protected]
Date Posted: 14 Jan 2016 at 8:31am
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yup tip it out and start again beats having a seized motor
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Posted By: Grasshoppa
Date Posted: 14 Jan 2016 at 9:14am
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most oils have a dye in them that colours the fuel, easiest way is take a sample of fresh unmixed fuel in a clear container, and another clear container of your current fuel, if your current is darker you can be confident its mixed If they are the same colour, or your not 100% confident, add oil Depending on quantity involved you may want to decanter it with equal qtys of fresh fuel to be safe Extra oil isnt the end of the world, after all, outboard engines run double mix for run in period/10hrs, if its only a tote tank you'll use it up soon enough If your in Wgtn im happy to "dispose" of it for you haha
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Posted By: Steps
Date Posted: 14 Jan 2016 at 9:32am
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I'm not sure if I mixed my 50/1 oil/petrol mix. The only way I can see that happening is if one doesnt have a solid routine of putting the oil in then adding fuel. The addition of fuel afterwards ensures far better mix of the 2 Adding oil after into a tank of petrol results in the oil falling to the bottom due to the higher viscosity and specific gravity. Also good practice with tote tanks etc is always have your 2 stroke and 4 stoke fuels separate... an Always mix when refill. Simple discipline and routine results in no risk to damaging or destroy a 2 stroke engine.. be it a $500 lawn mow or $25,000 engine |
Posted By: MacSkipper
Date Posted: 14 Jan 2016 at 11:46am
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I have noticed once that if you rub premix fuel between fingers at 50:1 will be oily residue compared to straight petrol. Try both to be sure, or add more oil as better safe than sorry. ------------- Good fishing trip nothing breaks, great trip catch fish. |
Posted By: 700 LTR
Date Posted: 14 Jan 2016 at 12:03pm
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I would start again just to be on the safe side |
Posted By: jetfisher
Date Posted: 14 Jan 2016 at 12:07pm
Above is a good test if you are used to dealing with fuels. Another option we use is tip a "SMALL" amount 50mls or so onto the concrete and light it. Straight petrol will burn with next to no smoke, premix will have a distinctive black smoke.
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MacSkipper wrote:Posted By: Don18025
Date Posted: 14 Jan 2016 at 12:49pm
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If in doubt, it will not do any harm in your car. |
Posted By: REIVER
Date Posted: 14 Jan 2016 at 1:12pm
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Use it around your yard to tidy up rubbish and stuff Pugsy. https://www.youtube.com/watch?v=w09IY73oVjE |
Posted By: pjc
Date Posted: 14 Jan 2016 at 1:50pm
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Should notice with a rub test or taste test ------------- Sex at 58.Lucky I live at 56 |
Posted By: Cpt.Pugwash
Date Posted: 16 Jan 2016 at 9:06pm
| Thanks guys discovered the colour test. |
Posted By: Grasshoppa
Date Posted: 16 Jan 2016 at 9:32pm
What should it taste like? Gotta say i've never heard that one before.....
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Posted By: C Pick
Date Posted: 28 Jan 2016 at 1:31pm
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I put a wrap of electrical tape on the handle when adding oil and tear it off when the tank is empty - it becomes a simple routine that is pretty much foolproof. If in doubt, put it in the car
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Posted By: pjc
Date Posted: 28 Jan 2016 at 2:16pm
------------- Sex at 58.Lucky I live at 56 |
Posted By: Villa2
Date Posted: 04 Jan 2023 at 1:49am
| Petrol cans are an indispensable tool for every driver and are part of the emergency equipment of every vehicle. They help you stay on the road when your tank is empty. If your car runs out of gas, you'll be glad to have such a can on hand. http://https://autothema.de/autozubehoer/benzinkanister-test/" rel="nofollow - Benzinkanister Petrol cans are not just petrol cans, as they come in many different shapes and sizes |
Posted By: smudge
Date Posted: 04 Jan 2023 at 4:45pm
Such a great post John Willa, how is Pakistan at the moment? You guys are pretty good at cricket but you really need to work on your spamming software. it's so easy to predict ------------- Best gurnard fisherman in my street |