strokerlmt.... Possibly the chances of having a leak may not happen immediately or maybe not in the near future but by not using the oil will just increase the over all life span of the gasket which means less maintenance and more riding. I work for a Caterpillar dealership and all the cat gaskets and also most quality brand gaskets are impregnated with a sealant that is released under pressure (That is why there are cheap gaskets on the market....no sealing compound) so there is not really a requirement for any additional sealant such as gasket cement, permatex etc. These products are really only nececssary when the gasket is being reused or the mating surface area is corroded, pitted or scratched and the gasket would not be able to seal in these smaller tolerances but the rule of thumb to achieve the best results is that when using any gasket or sealant is to make sure the mating surface is smooth and CLEAN of all grease, oils etc and using a fast evaporating cleaning agent such as brake clean or loc tight primer spray will help in this area but if it is still needed to use something to hold a gasket in place again don't use oil but instead a few small dobs of a sealant will do the job. Also if using any sealing compounds remember LESS is best, this means big globs of the stuff doesn't mean it will seal better because what actually happens is the majority will get squeezed out which is basically money being wasted by just making a mess around the outside of the compartment or even worse still, getting squeezed inside the compartment and having the possibility of being picked up and getting caught in an oil/lubrication port.