Classic Oils Heritage 20w-50 5Ltr

Classic Oils “Heritage” 20W-50 – High-Zinc Multigrade Mineral Oil

Our first Fuzz Townshend’s Classic Oils product, Heritage was created in honour of our location at Bicester Heritage and developed as a high-quality multigrade mineral oil for later classics (post-1960) fitted with oil filters.

Blended in the UK to Fuzz’s own formulation, it delivers strong all-round protection with a high zinc (ZDDP) content of 1300 ppm, making it particularly well suited to engines with heavily loaded rubbing surfaces such as cam lobes and tappets. Carefully selected base oils ensure excellent high-temperature stability and strong stay-in-grade performance, helping maintain oil pressure even under demanding conditions, including competition use.

Advanced detergent additives help keep engines clean by minimising deposits on pistons, spark plugs, and cylinder heads, supporting long-term reliability and performance.

Comparable in specification and performance to premium oils at significantly higher price points, Heritage offers outstanding value for classic engine protection.

Key Benefits:

• Prolonged engine life through reduced wear
• Reduced sludge and deposit formation
• High shear stability for consistent stay-in-grade performance
• Improved protection against bore polishing
• Strong high-temperature oil pressure retention

Detailed Specification:

• Specific Gravity @ 15.6°C: 0.889
• Kinematic Viscosity @ 100°C: 20.88 cSt
• Kinematic Viscosity @ 40°C: 189.03 cSt
• Viscosity Index: 131
• Flash Point (COC): 235°C
• Pour Point: -31°C
• Total Base Number: 10.2 mg KOH/g

Characteristics:

• SAE Viscosity: 20W-50
• Performance Level: API SL / CH
• Zinc (ZDDP): 1300 ppm
• Base Oil Group: Group I
• Detergent-Dispersant Package: High

A robust, high-zinc mineral oil designed to protect and preserve classic engines under both road and performance conditions.