I presently have two OMC 6.5 gallon steel tanks that I am not using. Storing them full of gas is not an option, but I don't really know what to do to them to prevent rust forming on the inside. <br />1. Put a pint of oil in them and try to get the interior coated with it?<br />2. Spray OMC engine fogging oil in them?<br />3. Spray WD40 inside?<br />4. Get a sack of dessicant, hang it in the tank and tape all the openings?<br />Any suggestions?<br /><br />Charles