My recommendations:
Castrol Edge High Mileage 5W-30 Advanced Full Synthetic
Mobil 1 - High Mileage 5W-30 Full Synthetic Motor Oil
2004 Toyota RAV4 Owners manual says:
“Toyota Genuine Motor Oil” is used in your Toyota vehicle. Use Toyota approved “Toyota Genuine Motor Oil” or equivalent to satisfy the following grade and viscosity.
Oil grade: API grade SL “Energy−Conserving” or ILSAC multigrade engine oil.
Recommended viscosity: SAE 5W−30
SAE 5W−30 is the best choice for good fuel economy and good starting in cold weather. If SAE 5W−30 is not available, SAE 10W−30 may be used. However, it should be replaced with SAE 5W−30 at the next oil change.
