I've tried various oils at various ratios in my Stihl br800 blower simply because I looked at the filthy cam gear in my fs100rx and decided to kick Stihl Ultra out of my house. Oh, the straw that broke the camel's back was the nasty smell (to me). I have messaged with several people who have used Saber @ 80:1 long term and they rave about it so I decided to try 64:1. I have to admit that going thinner than 50:1 sorta freaked me out. Today, 4 hours after use I decided to look at the valve rocker arms area and everything was glossy wet with oil, just like it was @ 50:1. My blower ran better, too. Not only was my spark plug cleaner, but the piston crown was glossy wet. At 50:1 there was a tiny bit of occasional surging that carb adjustment would not remedy, but not at 64:1. Not sure if I'll ever bump to 80:1. We'll see. No, I'm not an Amsoil dealer or fanboy, just telling what I've seen. Luckily the nice smell was still there. I was pleasantly surprised, and if it had not for that occasional tiny amount of surging and the testimony of long term (5 + years) users I never would have tried 64:1.
Saber @ 64:1 in Stihl blower
- Thread starter lilspenny
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Last year I started using 60:1 on my Stihl Weed eater. There was several times afterwords that It bogged down badly & I had to clean the spark arrestor screen. I attributed it to the higher gasoline ratio cleaning things up. No other issues lately. I just use whatever synthetic I can get though.
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The information you left out is that you were running Stihl Ultra at 40:1.
I had been, yes, but I had also run Stihl Ultra at various times, actually for years at 50:1 in my br420 but no matter the ratio it always led to a clogged spark arrestor. Why was that? I guess that's to be expected with an "FB" certified oil. Stihl definitely downplays the JASO ratings to defend their position that the higher "FD" rating of many oils is useless, even though they continue to proudly display the lower rating of "FB" on their Ultra bottles. That's a real head shaker. But, give them credit, the Ultra is quite biodegradable. Which, as Gable said "Quite frankly dear.....".
For some years now I've been using Sabre at 70:1 for my brush cutter, hand held blower and hedge trimmer, not Stihl products. Previously I was using various 2 cycle oils mixed at 50:1. The equipment seems to run better and cleaner with the Sabre at 70:1 than the various 2 cycle oils, both "synthetic" and blends, I used in the past at 50:1.
Well, it is what it is. From my perspective Saber has been better, even at 50:1, but when I went to 64:1 it was like switching on a light in a dark room. There may be a better oil out there, but I'm not in a hurry to find it.
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When I looked at the spark arrestor on my BR 600, it had some carbon on it, but it came off real easy with a soft tooth brush.
I see some people on YouTube using a blow torque to burn the carbon off. Not the case with mine.
I still have the spark arrestor but I no longer have it installed. Same with my FS 91 R.
That's heavy arithmetic!
Straight Fuel!
Sabre is 100:1Straight Fuel!
I used it at 100:1 for one season in a leak blower, Echo, ran like a champ, still does.
Yes, I know but that is a wide ratio. Joking of course. I've thought about doing that on the wife's Stihl weed eater but I don't know how much or where to buy it. I hate the smell of 2 stroke but I won't buy the wife a 4 cycle due to their heavier weight.
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All these motors run like cht off the shelf, you have to remove the exhaust screen and adjust the high speed jet on the carb, by removing the plug and adjusting.
Luckily new Stihl 4-mix don't have plugs but you will need the new 2314 carb tool. It's a 4.5mm octagon. The 2307 4mm hex is out of style!
our napa carries is and of course, and more importantly.... @Pablo
I will keep this in mind. Thanks
People cannot seem to grasp the idea that Jaso FB is outdated. Stihl Ultra is an oil technology that was used in the 1980s. When there are hundreds of other superior oils the be had, saber being just one of them, I am not sure why people think there is a need to use the overpriced stihl ultra. If they gave it away by the case when you buy a piece of equipment, that would be a reason to defend it. But the price is more then husky XP and Echo Red. No reason to use it at all.
If you run most modern oils 50:1 to 100:1 it will work on 8K RPM and less two strokes. 10K to 13K two strokes you will be taking a gamble running lean ratios like that.
If you run most modern oils 50:1 to 100:1 it will work on 8K RPM and less two strokes. 10K to 13K two strokes you will be taking a gamble running lean ratios like that.
Well, for starters I used it b/c it was included in my purchase & added an extra 2 year warranty. It's a synthetic oil, I mean 2 stroke is much older tech than 1980's so it's sufficient.
It's interesting that I bought this year a Korean weed eater (I think the engine is Chinese). It runs to about 9K and the manual calls specifically for FB oil and 25:1 ratio.
Also, I've seen Stihl manual where it's said that you can run their chainsaws at 50:1 only with their oil and 25:1 with any other oil (not sure if they meant the ashes TC-W3 oils, but possibly).
I don't know why is that, but I've seen it on paper in the manuals. In the Korean/Chinese clone I suppose they mandate lower ratio because they use cheaper metal for the engine internals.
Also, I've watched one guy on youtube (professional Canadian logger) and he said that he always run conventional FB oils in his saw vs synthetic. He was explaining in the video that Stihl Premium (orange bottle) and Castrol "Go" 2T is the same conventional oil that Castrol makes for Stihl, at least in Canada. And that Castrol is FB oil.
It's also interesting that FB oil is preferred for vintage 2-stroke bikes too.
On theory all FB, FC and FD oils have the same lubrication capabilities. The FC and FD just run cleaner and for that reason a conventional oil cannot qualify as FC/FD. That doesn't mean that lubricates less at the right ratio.
https://rymax-lubricants.com/updates/what-does-the-jaso-oil-specification-mean
The JASO 2-stroke oil classifications are:
- JASO FA: This is the lowest specification that tests lubrication capability, detergency, initial torque, exhaust smoke and exhaust system blocking. This specification has been officially declared obsolete in 2005 although it is still being used.
- JASO FB: This specification is slightly higher than JASO FA and tests the same characteristics. It requires increased lubrication capability, detergency, exhaust smoke and exhaust system blocking. It corresponds with ISO Global Specification EGB.
- JASO FC: This specification requires the same results for the tests of lubrication capability and initial torque as JASO FB but has higher standards for detergency and exhaust smoke and exhaust system blocking. It corresponds with ISO Global Specification EGC.
- JASO FD: This specification has the same standards as JASO FC except for a higher detergency requirement. It corresponds with ISO Global Specification EGD.
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To add... I just seen this from users asking Stihl about the Ultra. Also, they do mention that the Ultra does not come with fuel stabilizer so you'll want to add that into your storage tank.
Stihl doesn't show what the other oils are but thought it was slightly amusing. 500 hours on a blower engine. Hmmm, could be why I got an extra 2 year warranty for a total of 4 years on the weed eater. Seems they are putting their money behind their oil.
Does it meet FD standards?
Thank you for your inquiry and interest in STIHL products. JASO FD and ISO L EGD are not appropriate tests for handheld 2-cycle engines. The standards do not require any testing on high engine speed, high-temperature engines (like handheld OPE)
Stihl doesn't show what the other oils are but thought it was slightly amusing. 500 hours on a blower engine. Hmmm, could be why I got an extra 2 year warranty for a total of 4 years on the weed eater. Seems they are putting their money behind their oil.
