I use oil and it does leak...however the problem at least with mine is the case that is not perfect. If the material of the case was ok I think that it would work great. Now I have to keep the paper seal always in good shape in order not to leak
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Team Kyosho-Proline Racing-Team Orion-LRP-Maugrafix-ZWorks.tk-Rudebits-Ghea Racing
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