Motor Factory Mineral Engine Oil SAE 20W50 for older Harley-Davidson (4 Litres)Motor Factory oil and lubricants are made specifically for Harley Davidson motorcycles SAE 20W50 mineral oil (replaces multi grade). Check your handbook for compatibility with newer models 4 litre bottle (4. 2 US quart) may also be supplied as 4 x 1 litre bottles Designed to provide maximum protection in air cooled four stroke engines like the one in your Harley Davidson Meets or exceeds the API CH4 SJ rating, the highest in the industry