Have never been put off by any particular mix smoke, as far as I can recall. Best smelling recent use was Makita's Synthetic. Reminds me of dirtbikes. However, I am one of those who finds Diesel exhaust smell off putting.
It depends on the engine...some smell good, some stink, and if you are familiar, you can tell the engine by the smell...I can often times tell you what kind of older farm tractor just went past the house by the exhaust smell...the newer stuff is less dis-stink'd (distinct)
Hint of diesel exhaust I’m good with. There’s a certain ppm of it that starts burning the eye a throat etc or enclosed area. I drive a freight liner M2 at work with DPF/SCR emissions and that stinks like crazy even in the cab with the windows up. The smell of hot urea and whatever nonsense that is going on in the exhaust is horrible. I’d take the smell of straight pipe over it any day. Plus, vroom vroom.
None of my saws have cats. Most are ported. I ran my ported 350 and 372 today and they didn't bother me. I don't know if my friend's saw has a cat.
Amsoil sabre smells like the 2 stroke dirtbikes from race tracks. The truefuel absolutely stinks now. It burns my nose. The old truefuel smelled great, then they changed it a good year ago. It's absolutely horrible now. The Stihl oil shake ok. Not nice like amsoil, but not horrible like truefuel. Lucas semi synth is ok, but nothing like the sabre.
I like the sabre smell too. If I was rating oils strictly on smell.... Ipone Samurai...by far. It's strawberry scented. The rest are pretty close to each other and pleasant to smell. Motul 800 off-road Sabre Dominator Honda HP2
Careful if you do. This is what R50 did to my saws @ 40/1 with a proper tune. Gummy build up mess. When used in milling, the 394 produced the heat necessary to burn this off. Regular firewood cutting not so much. Someone I fully trust said most bike specific oils can do the same thing so if I want nostalgia in the smell, it's only occasionally.
I have been using tall timber oil for years. It leaves very little ash or carbon behind. There is very little cleanup in the cylinders when tearing saws apart.
I'm not much of a fan of the smell my lanwboy puts off with amsoil, the chainsaws are fine though. I so want to try that fuel fragrance though I'm in tears at some of the fragrances they offer.
The first place i remember that fuel fragrance smell was at the drag strip. Was popular for nitro funny cars to use.
Amsoil sabre will get you the same smell without any of the nasty deposits like The Wood Wolverine posted.
I can't recommend the fuel fragrances enough. My eyes and throat no longer burn when getting some trigger time.