What Causes Oil Burning in the Highlander?

1 Answers
Anastasia
07/29/25 4:59pm
Highlander naturally aspirated oil burning reasons are as follows: 1. Using inappropriate engine oil (0w20 oil) or overdue maintenance/neglected maintenance (oil light only comes on when oil pressure is insufficient, oil pump cannot draw); 2. Aging valve stem seals. Below is extended information about the Highlander: 1. The 2.7L inline 4-cylinder engine adopts dual VVT-i and variable intake manifold length system, with maximum power of 140kW/5800rpm, peak torque of 252N·m/4100rpm, and maximum horsepower of 188hp. 2. The 2.7L model leans towards fuel efficiency, this straight-four dual VVT-i engine coded 3AR-FE has obvious characteristics of high torque at low speeds.
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