The Best Oil Ever!

This is the oil that I use on our 1997 Toyota Tacoma and 1992 Toyota Celica. It is Castrol Syntec.

From their website:

Key Benefits

• SYNTEC provides superior protection against deposits. Corrosive particles such as acid, soot and oxidized fuel fragments can cause costly damage to critical engine parts.
• SYNTEC contains a Powerful Additive Package that neutralizes corrosive particles, preventing them from grouping together and forming sludge.
• Neutralizes acids in your engine that can cause rust and corrosion on vital engine parts such as cylinders, bearings and hydraulic valve lifters.
• SYNTEC meets the world's toughest gasoline engine protection requirements.
• SYNTEC provides Stability & Endurance under extreme conditions (heat, load, speed) that can cause conventional oils to break down.
• SYNTEC delivers the ultimate performance under high-temperature conditions: unsurpassed protection against volatility burn-off and viscosity increase.
• SYNTEC can be used with confidence in every gasoline engine passenger car, new or old, regardless of oil previously used.
• SYNTEC is fully compatible with all conventional and synthetic oils.
• SYNTEC offers a level of protection that Outperforms All Leading Conventional Oils, passing severe industry torture tests.
  
  *10W-30 as tested vs. leading competitive 10W-30S

Everything else is just motor oil.

NOTE: Only synthetics are used in aircraft turbine engine oil.