Two stroke

[Stubby]

Japanese standard gives it an FB which means it's about average.

 

But to be fair I think Stihl 2-stroke is the same so probably fine for something as undemanding as a chainsaw.

 

? ? ?

[wrsni]

Japanese Automotive Standards Organisation

 

Look for the JASO spec of any oil, it's the best pointer as to it's real world capabilities.

[spudulike]

Hardest working definitely, would be quite difficult to think of any more truly productive use of small two stroke engines. Against that, two stroke oil has the advantage of only having to do it's job once whereas a 4-stroke engine oil or gear oil for example has to stay there and work over and over again. So longevity is something that the two stroke oil formulator doesn't have to worry about.

 

But highly stressed, sorry not even close. Also proven by the standards of the oil sold for them.

 

Not having a go at Aspen or it's products by the way as it's actually the sort of thing I'd love to be selling.

 

Are you saying that the two stroke oil is less developed than four stroke sump oils or making the point that chainsaw engines are not as stressed as engines used in two stroke bike racing for instance - just trying to clarify where you are coming from:confused1:

 

I think the point all the garden equipment techs are making is that chainsaws go through more duress than pretty much any other bit of garden two stroke equipment and are not comparing the oil used in them to something used in a TZ500 for instance:thumbup:

[Eddie@aspen]

Japanese standard gives it an FB which means it's about average.

 

But to be fair I think Stihl 2-stroke is the same so probably fine for something as undemanding as a chainsaw.

 

Hi,

 

Just so you all know Aspen2 meets JASO FC.

 

This is a higher spec than HP Ultra

 

Kind regards

 

Eddie

[wrsni]

Are you saying that the two stroke oil is less developed than four stroke sump oils or making the point that chainsaw engines are not as stressed as engines used in two stroke bike racing for instance - just trying to clarify where you are coming from:confused1:

 

I was just trying to illustrate the point (probably pretty badly!) that chainsaws don't present that much of a challenge for the two stroke oil blender compared to the other stuff he has to keep right.

 

I suppose I was also a bit pissed that some people were dissing the oil at the start of the thread when in reality it would probably do as good a job as the Stihl oil that they cream their pants over, JASO classification is the same after all.

 

Did they even bother to look up the spec of it before commenting. I'll probably stand accused of being a bit pedantic but this is a pretty good forum and I think it's important to be accurate if you want it to stay that way.

[wrsni]

Hi,

 

Just so you all know Aspen2 meets JASO FC.

 

This is a higher spec than HP Ultra

 

 

That doesn't surprise me, I've been reading up on them a bit and they seem like a very decent company.

 

There is now an FD JASO spec but not many oils capable of meeting it apparently.

[spudulike]

I was just trying to illustrate the point (probably pretty badly!) that chainsaws don't present that much of a challenge for the two stroke oil blender compared to the other stuff he has to keep right.

 

I suppose I was also a bit pissed that some people were dissing the oil at the start of the thread when in reality it would probably do as good a job as the Stihl oil that they cream their pants over, JASO classification is the same after all.

 

Did they even bother to look up the spec of it before commenting. I'll probably stand accused of being a bit pedantic but this is a pretty good forum and I think it's important to be accurate if you want it to stay that way.

 

Right, understand, I am one of those dissers My view is that the 2 stroke oil really doesn't cost much and I would rather use something that has been designed with high performance saws in mind rather than a scooter etc but understand where your mindset was:thumbup:

 

My pants are creamless though:lol:

[Mull]

Interesting thread.👍

[wrsni]

I would rather use something that has been designed with high performance saws in mind rather than a scooter etc

 

Even the most basic scooter is more heavily ported than a standard chainsaw and while they might rev slightly lower revs aren't actually as important as piston speed, and given that most chainsaw engines seem to be heavily over square the scooter oil will be more challenged in that area too.

 

I'm all for good quality oil, but there's no point paying extra for an oil of the same spec and expecting it to be massively better just because there's a different name on it.

 

Since posting I've had a quick look and some of the Stihl oils are FB spec and some are actually FD spec!, so again at the risk of seeming pedantic, some of the Stihl oils would indeed be better than the Comma but some of them would in practice be little different. But I didn't see any particular types of Stihl oil mentioned in the thread so I doubt if that's a defence in this case!

[2stroke-ady]

IMHO the only one to benefit from using mineral 2 stroke is the local repair shop. They might loose out on selling you a bit of oil but they'll make a lot more money replacing pistons in your saws!!