The 2018 Toyota Highlander is a reliable midsize SUV known for comfort, fuel efficiency, and long-lasting performance. Whether you own the 2.7L 4-cylinder or the 3.5L V6 engine, using the correct engine oil is essential for engine protection and smooth operation.
Proper engine oil helps reduce wear, improves fuel economy, prevents sludge buildup, and ensures stable performance in all driving conditions including city traffic and highway travel.
2018 Toyota Highlander Oil Type
The recommended oil type for the 2018 Toyota Highlander is SAE 0W-20 full synthetic engine oil. This low-viscosity oil is designed to improve fuel efficiency while providing excellent cold-start protection and engine durability.
Toyota strongly recommends using high-quality synthetic oil that meets API SN or ILSAC GF-5/GF-6 standards for best performance and longevity.
Best Choice: SAE 0W-20 full synthetic oil (Mobil 1 Advanced Fuel Economy, Castrol EDGE, Pennzoil Platinum, Valvoline Advanced).
2018 Toyota Highlander Oil Capacity
Oil capacity depends on the engine configuration and includes oil filter replacement.
Oil Filter Information
- OEM Filter: Toyota 04152-YZZA1
- Aftermarket Brands: Wix, Fram, Bosch, Mobil 1
- Recommendation: Replace oil filter at every oil change
Oil Change Interval
Regular oil changes are essential to maintain engine reliability and prevent sludge buildup.
2018 Toyota Highlander Oil Change Cost
- DIY Cost: $40 – $80
- Independent Shop: $80 – $140
- Dealership: $140 – $220
Common Oil-Related Issues
- Oil consumption in higher mileage engines
- Sludge buildup from extended oil intervals
- Valve cover gasket leaks
- Low oil level warning due to burning oil
- Reduced performance from old oil
Maintenance Tips for Longer Engine Life
- Always use SAE 0W-20 full synthetic oil
- Check oil level every 1,000–2,000 miles
- Replace oil filter at every oil change
- Avoid extending oil change intervals too long
- Use trusted synthetic oil brands only
Frequently Asked Questions
What oil does a 2018 Toyota Highlander use?
It uses SAE 0W-20 full synthetic engine oil for both engine options.
How much oil does it take?
It takes 4.4 quarts (2.7L) or 5.8 quarts (3.5L) with filter change.
Can I use 5W-30 instead?
0W-20 is recommended. 5W-30 is not ideal unless specified in extreme conditions.
How often should oil be changed?
Every 5,000–7,500 miles depending on driving conditions.
Final Thoughts
The 2018 Toyota Highlander is built for reliability and family comfort, but proper oil maintenance is key to long engine life. Using high-quality synthetic 0W-20 oil and maintaining regular service intervals will ensure smooth performance for years.
Quick Summary
- Oil Type: SAE 0W-20 Synthetic
- Capacity: 4.4 – 5.8 Quarts
- Interval: 5,000 – 7,500 Miles
- Best Practice: Regular oil checks + synthetic oil use