For you since you have no preps of plan for gas, then for you don’t bother with oil and filters.
It wasn’t a rhetorical question. Gas goes bad, quickly. Yes, I know the time frame can be extended by adding a little diesel to help prevent oxidation of the gasoline, but it still isn’t indefinite.
Gas is definitely the weak link in most people’s prep plans - it’s difficult to store a sufficient quantity for any extended amount of time. Or do you have some knowledge that might come in handy?