No Toil Air Filter Oil - 1/2 Gal. NT218 Super tacky, sticky and amazingly good at stopping dirt Increased air flow due to Micro-Flow Technology, thus horsepower increase, by decreasing the resistance of the air traveling through the foam air filter Easy cleaning in seconds with water and No-Toil Cleaner Biodegradable and non-toxic Waterproof, will not remove from filter with water alone