Someone on this forum taught me to clean my chain by applying plenty of fresh motor oil with an oil can and then wiping the chain in a cloth as it runs backwards. The oil floats the grit off and lubricates it at the same time. I needed to do this where no oil can could be found. I got a 1 quart plastic bottle of motor oil and drilled a small hole in the cap. Turn the bottle over and squeeze ever so gently. The right amount of oil will run out onto the chain.