The longevity of your engine depends on using high-quality oil designed for its specific needs. Spectro Heavy Duty Engine Oil is a superior formula engineered specifically to protect American-made Harley V-Twin engines by minimizing friction and preventing harmful deposits.

• V-Twin Specific Formula:Formulated from superior petroleum stocks and combined with the most advanced anti-wear and anti-carbon additive systems available.
  
• Engine Protection: Specifically engineered to extend component life, reduce wear, and eliminate valve sticking for a healthier motor.
  
• Exceeds Industry Standards: This oil exceeds A.P.I. SF/SG CD/CG 4 performance standards.
  
• OEM Warranty Compliant: Meets all known OEM warranty requirements for Harley-Davidson motorcycles.
  
• Viscosity & Size: This is a straight 60 weight engine oil and is sold in a 1-quart bottle.