What 2 Stroke?

[Pinkfoot]

I dont spend much time on a saw these days Stubbs but I do keep a couple of those one shots in the truck for emergencies, our normal mix is 25/1 but cant say I have noticed the smoke difference on the odd occasion I have used the one shot. Just for the hell of it and not to be outdone by JB I am going to try that asprin fuel you lot keep going on about ( in secret )

 

 

 

Bob

 

It stops you getting headaches.

[aspenarb]

It stops you getting headaches.

 

 

Was thinking more of the saw that travels with me and only gets used once in a while to trim up the timber trailer or cut the tractor out, stale fuel and all that.

 

Bob

[Pinkfoot]

Was thinking more of the saw that travels with me and only gets used once in a while to trim up the timber trailer or cut the tractor out, stale fuel and all that.

 

Bob

 

Sorry Bob , I made a poor attempt at a joke with your reference to Asprin fuel.

[Gary24]

Does it do any harm to change oil brands in saws after running on one brand for some time?

[TimberCutterDartmoor]

Does it do any harm to change oil brands in saws after running on one brand for some time?

 

If you carried out ROA on the oil in the crank a less pressure holding oil would show a short term increase in wear metals, lead in particular.

[Stubby]

Not much in it though as a percentage Stubbs. 96% fuel @ 25/1 and 98%fuel @50/1 which is probably why Stihl err on the side of caution when using non Stihl oil. In my opinion at 25/1 its still diluted to the point of being insignificant.

 

Bob

 

Surely if you are mixing your own at 50:1 you are using up 50% less oil than at 25:1 ....there's a saving

[R Mac]

What's wrong with using a bog standard 2 stroke oil, as used in motor cycles or outbound engines?

 

Sent from my G7-L01 using Arbtalk mobile app

 

Absolutely everything

 

Why is that? I assumed if the oil met or exceeded the JASO rating recommended by the saw manufacturer it would be fine, is that not so?

 

FWIW I use Oregon 2 stroke in all my saws (Echo) and pruner, trimmer & leaf blower (Timberpro) all running 50:1 although Timberpro say to use 40:1.