#GARAGELIFE Enter for a chance to win your dream garage. Castrol EDGE - 10x better high temperature performance*
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Castrol EDGE Full Synthetic or Full Synthetic High Mileage Motor Oil and an STP Extended Life Oil Filter up to $9.99 + $10 Bonus Reward

† Available to AutoZone Rewards Members. Offer may vary by market

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Castrol GTX High Mileage

Castrol EDGE Advanced Full Synthetic

World Record Mileage Achievement

GTX - Helps extend engine life, cleans away old sludge* and protects against new sludge formation.
GTX High Mileage - Specially designed for engines with over 75,000 miles, helps prevent emission system failure and helps extend vehicle life.
EDGE - Advanced Full Synthetic with Fluid Titanium Technology transforms to be stronger under pressure, reduces friction and unlocks the true performance of your engine.
EDGE High Mileage - Advanced Full Synthetic designed for engines with over 75,000 miles, helps protect the catalytic converter with low phosphorus content.
Transmax® ATF/CVT - Formulated with Smooth Drive Technology™ and premium, full synthetic base oil, designed for most continuously variable transmissions with push belts and contains superior technology to enable longer transmission life.

Superior Clean

Castrol® GTX® is proven to clean away the sludge that can block engine oilways* and can prevent new sludge from forming.

GTX Ultraclean - No oil keeps engines cleaner, From the #1 conventional brand, Synthetic blend, Meets Ford 5W specs
GTX High Mileage (For Vehicles with greater than 75k Miles) - Specially designed for engines over 75,000 miles, Helps protect your emission system and extend engine life, #1 high mileage brand, Synthetic blend

MAXIMIZE ENGINE PERFORMANCE. SUPERIOR WEAR PROTECTION. SUPERIOR CLEAN

Castrol® EDGE® is our strongest oil with Fluid TITANIUM to reduce friction and maximize engine performance.

EDGE - 3X stronger than the leading competitor against viscosity breakdown**, Advanced full synthetic, European specs, GM dexos1® Gen 2
EDGE High Mileage (For Vehicles with greater than 75k Miles) - Specially designed for engines over 75,000 miles, Helps protect the catalytic converter by reducing phosphorus, Advanced full synthetic, Meets Ford specs
#1 High Mileage Brand - Castrol GTX helps prevent emission system failure and extend engine life

* When tested in engines with high levels of sludge.

** Based on the Kurt Orbhan test, 5W-30 Viscosity grade.