Schaeffer's 6075 SynShield® HIGH MILEAGE Performance Full Synthetic 5W-30 (12-Quarts) 

High-mileage engines have unique protection needs that standard full synthetics weren't formulated to meet. Wider bearing clearances from accumulated wear demand stronger film strength. Aging ring and seal conditions contribute to increasing oil consumption. Years of thermal cycling call for superior oxidative stability. SynShield® High Mileage Performance Full Synthetic 5W-30 keeps engines exceptionally clean and free from oil residue and sludge, allowing the oil to flow freely and lubricate properly.

Schaeffer's SynShield® High Mileage Performance addresses each of these conditions with an enhanced anti-wear additive package built specifically for engines with 75,000+ miles — going beyond what standard synthetic formulations provide. 

Technical performance advantages:

• Micron Moly® and Penetro® friction modifiers plate immediately to worn metal surfaces, providing a tenacious boundary film that prevents metal-to-metal contact across wider-than-spec clearances
• Superior resistance to oil breakdown — maintains viscosity and film strength over extended drain intervals
• Exceptional oxidative and thermal stability — resists the deposit and varnish formation that accumulates in thermally stressed high-mileage engines
• Reduced oil consumption — better film integrity reduces oil migration past worn rings and aging seals
• Exceptional engine cleanliness — removes existing sludge and varnish while preventing new deposits from forming
• Superior cold cranking and pumpability — 5W-30 flows immediately at startup to protect worn surfaces before full oil pressure builds

SynShield® High Mileage Performance Full Synthetic SAE 5W-30 is formulated for use in the following applications: 

API Service Classification SQ, Resource Conserving; ILSAC GF-7A.

Always consult the owner’s manual and the OEM’s recommendations for the correct engine oil recommendations. More information is available in the technical data PDF download.

Do you want to find out more about the benefits of using premium Schaeffer's oil? READ THIS!

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added 11.7.25

rev 2.26.26