An update
So having bought one I opened the box woo hoo
The oil bottle was not quite full, some was spread around inside the box but so what!
The 2 main components were held together for packing with two nice chunky reusable cable ties -- good you can't have too many cable ties.
Assembly was straightforward and the instructions were pretty good.
I have bought 2 batteries a 2 and 4 ah and pre-charged them only used the larger one and will keep going without charging to see how long it lasts.
I tried a 2-inch branch on a tree that recently fell down and it cut through like butter.
Next was a 7-inch fir tree stump to cut flush at ground level which it cut through with a little bit of struggle (might have been the angle it was cutting at) but fine.
The oil filler cap unscrewed itself during the above but maybe user error
I now need some more oil to top up, not sure if cooking/sunflower or mineral oil (baby oil) would be best, the supplied oil seems a bit sticky and a bit less runny than the other two oils I might buy.
All in all, so far, a satisfied customer.
Hope this is helpful
Chainsaw oil is cooked/blended/created/whatever to "Cling" to the Chain so isn't designed to be runny or chain/blade/arm/bar will cook/burn probably not on that bar as slow speed leccy job. but many have a wheel with a bearing in end of arm for chain to run over which needs lube.
you can use engine oil but always make sure oil is checked reg! or chain/bar runs dry which means chain stretches! but also oil pump will die.(very common with leccy and DIY donuts using as never check .
Another thing you will need is sharpening kit Just like with Wood butchering! Blunt chains increase time it takes to cut and also decreases battery life as more load on machine plus heats parts up.
Probably 1/4" gauge chain 325/3/8th pitch? (if don't say on side of links will state a number like 66.74.etc or 93LP which means low profile) which many leccy saws use as don't have run time to run a normal toothed chain.
If pics ive found are correct? it's a 91 bar and chain is 3/8 0.50 chain?
Many machines will leak when left just a fact of way pumps work as some are just an arm piece that runs along a length of soft tube in a repeating motion!
While more industrial Chainsaws have a better pump but none have non return valves etc so just like having a "Real British" Motor cycle/car you always know where it was left plus never need an oil change as stuff never stays in it long enough!
I use these people for my saw chains always helpful and quick delivery plus do sharpening kit.
OREGON® 91PX 3/8" x .050" (1.3mm) (replaces 91VG) Oregon chains are ok do like there 73exl chain.
Any issues give us a shout and can try to help.