Refer
referred to autotune 592xp only said the same for the 562xp as well, mentioned that they seem more happier on 33:1 and his experience they last for years and years, he still is running an untouched 562xp, the first of them like mine, without issues. I asked about 25:1 which I prefer but he said better off with 30-33:1 I personally never found 50:1 reliable amidst the dozens and dozens of saws I know ran that ratio, lots of pistons melted and scored bores, I never seen bores score with 25:1 mineral ‘air cooled two stroke oil’, I always used Pennzoil in the past and still have some, my 61 has only ever run on it since 1994, it’s never been touched, has heaps of compression and no bore scuffs. Can’t get that anymore so I now prefer Gulf Western air-cooled two stroke it’s as close to the Pennzoil I can get. I don’t like the Husky oil but am told I have to run it for warranty. My thoughts on this down the track will be for dealer to check it prior to warranty is over, if it’s scored they can rebuild it m, after that it’s on to Gulf Western. One conversation I have had with an engine builder was that if the fuel runs low and is running out, he felt 50:1 offered nowhere near the protection, less than half or more, of 25:1 in those short instances whereby the autotune is working hard to readjust in super minute fractions of time, critical he said and wondered can it keep up? Remember it’s altering for air fuel ratio and not oil quantity!? & also felt it ‘may’ be the time ‘most’ damage is easily done? Many here will keep there saws going(any saw) ringing their necks until they run out of every drop, even restarting to get the last! Hello is that not why there is a visible fuel level in these newer saws (husky autotunes) to prevent that lean issue, and retuning? It also may mean that the autotune may also need retuning due to this prior compensation(may- Because all this is still new as regards understanding) From experience, my 592 ran better after I retuned it when it ran ‘close’ to empty after it had given a splutter, no warning and prior to my noticing the rank level s it was in the underside when falling, I just shut it down, refuelled, then after half a cut, I retuned it for curiosity and it was back to normal, obvious to me it had changed the way it ran as opposed to prior. It’s a learning curve for me this saw with modern chips in it, mind you a happy one so far though! And I’ve yet obviously due to newness found any others up in them. Stay sharp n smile to the bellow these make!
