Two-stroke oil/chainsaw.

[Riejufixing]

Not in Workshop because chainsaw.

The STIHL book says "Your two-stroke engine requires a mix of brand-name gasoline and quality two-stroke engine oil with the classification TC"

It also says "We recommend STIHL oil since it is specially formulated for use in STIHL engines. The mix ratio is 50:1 with STIHL oil, or 25:1 with other branded two-stroke air-cooled engine oils".

Now I've got a bottle of Silver Hook two-stroke oil, API-TSC3, and I've been using 25:1 which is a bit fruity. I wondered whether Stihl's advice was aimed at sales rather than necessity.

D'you reckon I could thin it down a bit without risking damage?

[almostthere]

Had a gardener round to chop some branches and cut a few trees down he put neat petrol in his stihl chainsaw!
I told him he needed to mix two stroke oil in it he told me it didn't need it.
Watched the wanker use it for best part of an hour waiting for it to sieze
it didn't didn't even get the chance to say I told you so
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Beer, It's the reason I get up every afternoon
www.mfairco.uk

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Even 4 stroke chainsaws should run on premix. Stihl call them 4-mix bigness.
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TZR250 2MA road, TZR250 1KT road, TZR250 2MA race, TDR250, YZF-750R Boost colours.
Jaguar S Type 3.0 V6 Sport R, VW Transporter T5 GP LWB Shuttle 140ps DSG.

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[Easy-X]

Every manufacturer comes out with the same bollox. 50:1 for our stuff and 25:1 for everybody else?! That's a new tactic, it's a fricking chainsaw, not some... I dunno, highly tuned 2-stroke race bike

TBH unless you're going to run it for hours and hours continuously it won't make much odds. How about a compromise: 32:1
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Husqvarna Vitpilen 401, Yamaha XSR700, Honda Rebel, Yamaha DT175, Suzuki SV650 (loan) Fazer 600, Keeway Superlight 125, 50cc turd scooter

[Riejufixing]

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[bhinso]

Why are you having a pop? You can't claim self defence this time.

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[Fisty]

All of our 2 stroke stuff at work we hire out is Stihl, we run it on 25:1 of whatever is cheapest at the time.
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Quietly and consistently taking the piss.
TL1000R | Hayabusa | ZXR400 | TL1000S | Bandit 400 V
Fatter and faster than Fret

[doggone]

I would take that to mean 50:1 is OK but put a bit more in if worried, it won't do any harm.
Chainsaws don't seem as thirsty as the b*stid stone cutting thing we we were using for six months, but even that the cost of proper stihl oil was trivial compared to all the other stuff consumed during building work.

[Riejufixing]

[Old Git Racing]

Run mine 50:1 using the fully synth I put in my YPVS.

OGR
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2022 Tiger Sport 660 2019 Street Twin 2003 K3 gixxer 1000 1998 Srad 600 track hack

[Riejufixing]

[Riejufixing]

[bladerunner]

oldish thread I know, but a mate of mine bought some ancient seagull outboard engine a couple of years back....and that said 10:1 2 stroke oil mix....WTF!!! I mean 10% oil on an old shiter of a 3hp motor!
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Current bikes...cbr929, KDX200's, Rd125lc mk2, RGV250's

[Jewlio Rides Again LLB]

[Easy-X]

Low powered engine? Probably expected to run at full throttle all day every day. 10:1 sounds fine then.
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Husqvarna Vitpilen 401, Yamaha XSR700, Honda Rebel, Yamaha DT175, Suzuki SV650 (loan) Fazer 600, Keeway Superlight 125, 50cc turd scooter