High Desert Harley-Davidson - FREE heavy synthetic 80w-140 gear oil with any major 1K, 5K, or 10K service! This heavy synthetic gear oil is intended for use in extreme temperature environments (desert
Change Oil Motor Transmission Synthetic Harley-Davidson Sportster – California Motorcycles
Anyone Used Mobil1 75-90 or 75-140 Gear Oil In Their M8 Primary? | Road Glide
Formula + Transmission and Primary Chaincase Lubricant | Harley-Davidson USA
Hideout Harley-Davidson on X: "Exclusively engineered for Harley-Davidson Motorcycles, this Heavy Synthetic Gear Oil is intended for use in extreme temperature environments (desert heat or cold weather), frequent two-up riding and heavy