The Highlander’s engines require SAE 5W-20 engine oil with API SN or higher; 5W-30 is acceptable in hot climates or under heavy loads if 5W-20 is not available. Conventional, synthetic blend, or full synthetic oil are all acceptable as long as they meet the specification. The 2011 Highlander offered two engines: a 2.7-liter four-cylinder (1AR-FE) and a 3.5-liter V6 (2GR-FE). This article explains the oil grades, capacities, and service tips to help you choose and maintain the right oil for your SUV.
Engine options and oil requirements
What follows summarizes the official oil grade requirements for the Highlander's two engines, including recommended viscosity, specs, and acceptable oil types.
- Engine options: 2.7L four-cylinder (1AR-FE) and 3.5L V6 (2GR-FE).
- Recommended viscosity: SAE 5W-20 for normal operation; SAE 5W-30 may be used in hot climates or under heavier loads when 5W-20 isn't available.
- Oil type and specs: conventional, synthetic blend, or full synthetic oil is acceptable provided it meets API SN or higher and ILSAC GF-5 or higher.
Always refer to the owner's manual or the under-hood sticker for your exact spec, as climate and regional requirements can affect recommendations.
Oil capacities and change considerations
Below are typical fill capacities for the Highlander’s two engines and practical notes for a successful oil change.
- 2.7L four-cylinder (1AR-FE) capacity: approximately 4.7 quarts (with filter).
- 3.5L V6 (2GR-FE) capacity: approximately 6.4 quarts (with filter).
- Always replace the oil filter; use the correct drain plug gasket and ensure the engine is at the proper temperature when checking the level.
After topping up, recheck the level with the dipstick and adjust to the Full mark as needed.
Service tips and reminders
Practical reminders to maintain oil quality and engine health between changes.
- Stick to the oil change schedule recommended in the owner’s manual and service interval handbook; use the appropriate viscosity for your engine and climate.
- Choose a high-quality oil from a reputable brand and replace the oil filter at each change.
- Inspect for leaks around the drain plug and oil filter and address any issues promptly to prevent low oil levels.
These steps help protect engine performance and extend its life.
Summary
For a 2011 Toyota Highlander, use SAE 5W-20 oil that meets API SN or higher (5W-30 is acceptable in hot weather or under heavy load). The two available engines share this spec, with capacities of about 4.7 quarts for the 2.7L inline-four and about 6.4 quarts for the 3.5L V6 (both with a filter). You may choose conventional, synthetic blend, or full synthetic as long as the oil meets the required specs. Always consult the owner's manual for your exact interval and climate considerations, and replace the oil filter with each change.