Firstly, this will destroy ANY warrenty you have oon the product, so if it damages chips they cannot be replaced.
The miners don't tend to run very well without fans,I think that they usually either shutdown, ore make beeping noises.
Also, I understand that there may be exposed cabling on the antminers, so uou will have to use a dense oil (possibly higher than petrol's density), otherwise it could combust!
Just for those that might not understand, you need to use a special mineral oil that doesn't conduct electricity. Most oils probably would instantly destroy your electrical equipment and may result in an instant, hard to put out, blaze. I believe the viscosity of the mineral oil used in oil submersion computing is pretty thin, closer to water than to motor oil.