Mag 1 High Mileage Synthetic Blend is formulated for engines with more than 75,000 miles - the wear-protection level steps up over conventional oil and the seal conditioner package helps slow the slow drip that older engines develop at the valve cover and crank seals. The FMX additive system holds film thickness under heavy load and warm-climate temperatures while still flowing cleanly on cold starts.

• Synthetic blend formulated for engines over 75,000 miles
• Seal conditioners help reduce leaks past worn valve seals and gaskets
• FMX additive package for oxidation stability under heavy load, high temperature, and cold starts
• Holds high-temperature film thickness to protect bearings under load
• SAE 5W-20 viscosity grade - common factory fill for late-model domestic V6/V8 engines (Ford, GM, Honda); good cold start and steady high-temperature protection
• Container: 5 Qt - 5-quart jug sized to a typical full oil change - one jug covers most 4-cylinder and V6 sumps in a single pour
• Meets ILSAC GF-5 and API SN service categories

Tip: Always check your owner's manual for the manufacturer's recommended viscosity grade. Switching to a high-mileage formula in an older engine can slow seal leaks, but do not increase viscosity beyond what the manual specifies - thicker oil reduces flow to top-end bearings and timing components.