New chainsaw running through oil incredibly fast -- is this normal?

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  • Updated 4 months ago
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I recently bought an Ego 16" chainsaw and have used it twice. In both cases, it ran through bar oil far more quickly than I'd expected, and I'm curious if others can give some insight here. For reference, I'm using Stihl Bio Plus bar oil.

For the first job, I completely filled the reservoir and cut up a sizable branch that came down during a storm. (This was maybe a 15-20 foot branch, 5-6" thick at the thickest, with some smaller branches coming off it; I cut it up into firewood-length pieces.) I can't recall how long I was cutting, but I was still surprised to see at the end that the saw was completely out of bar oil. (Thankfully the chain was still oily-looking, so I wasn't running it dry.)

The next job, I'd filled the reservoir to about 80-90%, and did minimal cutting to fell a tree. (Long story, but it amounted to the equivalent of about 3-4 cuts through an 8-10 inch tree). At the end of that very brief cutting, the oil reservoir was down to only about 10-20% full.

Needless to say, it seems bizarre to run through bar oil that quickly. Am I right? Any thoughts or ideas? Is this just an odd "new chainsaw" thing, or could something be off with my chainsaw?

The other possibility is that it's the particular bar oil I'm using, but that seems rather unlikely; Stihl is of course a premium bar oil brand, and I've seen no similar complaints with the Bio Plus oil. I do have another (cheaper) oil I could try (Home Depot's house brand), but I'd prefer sticking with the biodegradable stuff since it's my own lawn that these oil-soaked chips/dust end up on. 

Thanks for your help anyone! I'm hoping someone from Ego will chime in, though I'd also appreciate hearing experiences from other Ego customers on this one.
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dbull058

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Posted 5 months ago

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Ken Hamann

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Personally, I'd go with it for a while and see if it levels out with time. The outdoor temperature has a big effect on the viscosity, a hot day will thin the oil and permit a more generous flow. Too much oil is  less of a problem as too little oil.
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dbull058

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Thanks for chiming in. I should have added, I live in Michigan, so it's been pretty cool the two times I used it (in May), probably 70s the first time, 60s the second time. Curious for others' input as well...
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dbull058

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Any help/input from anyone at Ego on this?
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A Rose

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Likewise I am seeing the same problem.. Just filled the tank and cut a small pile of logs and the tank is empty.  Is there any adjustment to the flow rate?
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dbull058

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Glad to hear I'm not the only one! But unfortunately, still no info from Ego or others on this. I'll hope mine evens out after a couple more uses. But still would appreciate it if someone from Ego would comment and give some advice here.