harbor freight demo hammer oil...

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so i inspected my demo hammer before use and it looked full of oil. looked the manual up and it said to use rotella 40 wt. 3.5 oz to be exact...

i dont own a sae40 wt...

but i have a gallon of sae 50

and gallons of 1540 / 2050...

can i use any of them ?
 
I looked it up for grins, and yeah, they really do call out Rotella by name!

I'd use the 20w50. I suspect it's going to leak a little as it operates, otherwise, why have a refillable tank?

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Folks who've bought the $330 hammer also get the $1.50 Safety glasses, per their website.
 
it would probably be better to make sure its got oil instead of what type of oil...

and yes, i was rather surprised it specifically said rotella!
 
just received + used my TRIndustrial yesterday, it came with 15-40 + noted thinner for colder weather + i would think heavier in extreme heat. that said we all know its a 40W @ 212F so how hot does the oil actually get, lesser temps equal less viscosity!
 
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