Twenty four brass coupons, three per soil per cleaner, were weighed to record their initial weights. The coupons were then soiled with their respective soils; american lapping compound, LMKT lapping compound, Honing oil, and slide gel lubricant. About 0.5 grams of each soil was spread on the bottom third of each coupon with a swab. The dirty weights of the coupons were then recorded. The coupons were then subjected to 20 minutes of unheated ultrasonics in their respective cleaners. Once cleaned, the coupons were left the air dry over night. The next day, the final weightss of the coupons were recorded.