Two stroke premix?

[lancepar]

Which forum should I ask about premix for 2 stroke engines, nothing too technical.?

Cheers

[Metric Max]

What are you using it in?

[normalbloke]

Aspen fuels. Just buy it in ready made….

[Panamax]

Always buy the good stuff. There's a useful article on Wikipedia covering the significance of synthetic oil etc,
https://en.wikipedia.org/wiki/Two-stroke_oil

[alangla]

I used to make my own. Buy a mixing bottle with lines for the volume of petrol and oil, fill to the first line with petrol, second line with oil and shake the bottle.

[The_Doc]

Newer stuff 40:1 or 50:1, you won't accurately measure the difference, it all comes out at 45:1 if you mix at home!

Use synthetic fuels so the ethanol in forecourt fuel doesn't degrade and block your carburettor.

Old stuff (like 30+ yrs old) use 25:1

[alscar]

Stihl do the 100ml top up shots which added to a full 5 lt give you the 1:50 mix or as said already Aspen although pre mixed its not particularly cheap.

[Soloman Dodd]

A can of petrol and a bottle of two stroke oil, easy.

Just look up the required ratio in the engine manual.

[Cow Corner 2.0]

While mixing up 2 stroke fuel is easy, I have been seriously considering going down the Aspen pre-mix route for the extended working life of the fuel - as an irregular user of my chainsaws etc, it’ll just be easier to not having to worry about fuel going off in the tank or containers.

Haven’t looked at the costs yet…

[1690cc]

Premix is fine if you only use small amounts. Otherwise it is over double the cost of mixing it yourself.

You are only mixing two things it's not high level chemistry.

Plastic jug, smaller plastic beaker, both with lines drawn on, fill each to line and tip into cleaned out plastic 4 litre milk containers.

I mix about 12 litres at a time every couple of days in the autumn for the leaf blower and I'd struggle to take longer than 5 mins each time.

For peace of mind I use Tesco E5 petrol and Sthil Ultra and at the end of the season squirt a little Honda fuel stabilizer into the final few mixes.

[trickywoo]

E5 and pro kr2 at 50:1.

Mix and use as fresh as you can but I have mix in my chainsaw for months at a time and it always starts ok.

[lancepar]

Thanks guys but I was looking for a link to a forum on Piston Heads, where peeps race old 2strokes.

In the 60's we used to add a spot of R in the fuel tanks of our 4 strokes so that the smell of R could be sniffed.

I'm in my 70's but still ride bikes and prefer to exhibit small lightweigh jobbies at shows.

I know the ratio for my recently aquired 50cc Romet and have used the correct ratio of R in the premix but how do I get the aroma stronger?

[trickywoo]

lancepar said:

In the 60's we used to add a spot of R in the fuel tanks of our 4 strokes so that the smell of R could be sniffed.

Fuchs pro kr2 gives that smell and is also great oil. I’ve got my 7 year old hammering around the garden in a Franco morini engined 50 fuelled with that just for the smell.

[troika]

Mix it myself for strimmer / leaf blower / chainsaw using v power or esso super (E5). Throw in some fuel stabiliser for good measure. Lasts over winter, fires straight up in the spring with no issue.