Adding 2 stroke oil to Cat fuels

Over here I have been using 93 octane with good results, but some places sell "lawnmower Gas" which has no methanol in it and works good.

I haven't bothered with my cousin's Twenty-Two but that of course is in Enzed and I don't think they put ethanol in gas over there. Doesn't run enough to worry about valve recession although if I was ever to do the cylinder head, I'd get hardened seats installed. Here I just put in pump gas for the D2's pony - seems to sit all year and crank up no problem after extended no-run periods.

Here in Dreamland I use my 2 stroke chainsaw mix in my pony motor tanks, figuring they always have rust issues, and used to use the higher octane gas because I was told it stored much better than regular gas, the downside was my Stihl MS390 chainsaw started getting hard to start and it took me a couple of years to work it out, even after having the local Stihl workshop investigate the issue who fitted a new aftermarket carb for me.

I went back to using regular gas to mix my 2 stroke fuel and that has really helped the problem, it "only" takes about 10-15 pulls on the cord now to fire that saw off, whereas previously on the high octane 95 fuel it would be 35-45 pulls on the starter cord with choke on, before I got the first pop. There is no doubt my saw is a dog, not a Cat....

Here in Dreamland I use my 2 stroke chainsaw mix in my pony motor tanks, figuring they always have rust issues, and used to use the higher octane gas because I was told it stored much better than regular gas, the downside was my Stihl MS390 chainsaw started getting hard to start and it took me a couple of years to work it out, even after having the local Stihl workshop investigate the issue who fitted a new aftermarket carb for me.

I went back to using regular gas to mix my 2 stroke fuel and that has really helped the problem, it "only" takes about 10-15 pulls on the cord now to fire that saw off, whereas previously on the high octane 95 fuel it would be 35-45 pulls on the starter cord with choke on, before I got the first pop. There is no doubt my saw is a dog, not a Cat....

not to start a chainsaw discussion, but I got rid of my hard-starting Stihls and replaced them with an easy starting beautiful Husqvarna. day and night difference.
 

[quote="Mike Meyer" post=226945"]What are the latest theories on adding 2 stroke oil to both diesel and gas engined old Cats, is there any benefit to be had, or is it a waste of time and money? Most my old girls sit for a long time between floggings, so I've used some oil in the gas Cats tanks just to try and reduce rust issues, but I remember folks talking about valve lube benefits too, but can't get the topic search function to work on here.
Thanks

that's a good question Mike and i think the results will be mixed...
- i wouldn't add any kind of oil (additive) to diesel unless it was an injector cleaner etc....diesel is already a light oil...
-here in North America...the latest fashion is Gasoline Stabilizers...i've tried some and i can't really see any difference in fuel and tanks that have sat awhile (thru winter etc)
-your mileage can and will vary..
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I use Aviation fuel 100 Low Lead in all of my gas powered engines like lawn mowers pony motors and the gas CATS. Most sit for months at a time and I have no issues. It also smells better than regular pump gas. I haven't checked cost this year but last summer I was paying around $4.80 gal.