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Sthil Motomix

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Sthil Motomix

Postby Robbins33 » Sat Aug 23, 2025 6:52 am

Hi Guys. Could I use Sthil Motomix fuel in my TV200. It’s a non ethanol fuel that does not deteriorate over time. It’s 50:1 mix. I use it in my my garden strimmer, hedge cutter etc leaving in over winter with no starting problems following spring. Downside is it’s £25.00 for 5 litres. Thanks.
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Re: Sthil Motomix

Postby Tractorman » Sat Aug 23, 2025 9:31 am

Why do you want to use this?
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Re: Sthil Motomix

Postby Warkton Tornado No.1 » Sat Aug 23, 2025 10:09 am

Stihl Motomix is a pre-mixed petroil that claims not to deteriorate.

If you want to ‘future proof’ your fuel - which may last up to three months without additives claimed to avoid deterioration - you might consider this Motomix as an option.

As I run garden equipment with IC engines, I decided to buy four gallons of Avgas that should last four years.
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Re: Sthil Motomix

Postby Fast n Furious » Sun Aug 24, 2025 12:46 am

I winterup this way:-

1. Leave the scoot undisturbed for a couple of weeks to let the fuel in the tank settle. Then,
2. look into the tank using a good torch to see if if I can detect any water globbules on the bottom of the tank. E10 absorbs moisure and it's prevalent in the storage tanks at fuel stations. If water is found, I drain the tank and then warm the tank with my portable workshop heater to gently evaporate anything left in the there.
3. If the fuel in the tank looks ok then it just needs protecting from moisure especially if that scoot has to winter in my damp shed.
4. I have a cheap tub of Silica crystals. (This is the stuff that florists use to dry out flowers). I put some in an old sock, weigh it and then hang it inside the filler hole and secure it with the cap making sure the lowest part of the silica sock is an inch or more above the fuel. When I remove it in the spring, I weight it again to see how much moisture has been absorbed!!!. Dry out the crystals in the summer sun and then keep them in an air tight container so they can be used again the following winter. :idea:
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Re: Sthil Motomix

Postby Rich Oswald » Sun Aug 24, 2025 11:32 am

Fast n Furious wrote:I winterup this way:-

1. Leave the scoot undisturbed for a couple of weeks to let the fuel in the tank settle. Then,
2. look into the tank using a good torch to see if if I can detect any water globbules on the bottom of the tank. E10 absorbs moisure and it's prevalent in the storage tanks at fuel stations. If water is found, I drain the tank and then warm the tank with my portable workshop heater to gently evaporate anything left in the there.
3. If the fuel in the tank looks ok then it just needs protecting from moisure especially if that scoot has to winter in my damp shed.
4. I have a cheap tub of Silica crystals. (This is the stuff that florists use to dry out flowers). I put some in an old sock, weigh it and then hang it inside the filler hole and secure it with the cap making sure the lowest part of the silica sock is an inch or more above the fuel. When I remove it in the spring, I weight it again to see how much moisture has been absorbed!!!. Dry out the crystals in the summer sun and then keep them in an air tight container so they can be used again the following winter. :idea:


Do you know what, I do nothing to my fuel or tank over winter. Only use E5, and if there's any fuel left I just leave it there. give it a shake and start up a couple of times over winter.

Never had a problem doing this in last 28 years.

Rich'
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