based oil

Is John Deere Turf Gard Oil Synthetic? Turf-Gard or a quality brand of 10w-30 synthetic oil is what you want to use. Is John Deere Turf Guard 10W-30 Synthetic? This is Not Synthetic Oil. Standard 10w 30w with additives. Have used this oil from day one in my John Deere . A quality product delivered