Fuel Fill Location and Identification Owners should locate the fuel filler neck on the left side of the rear bumper. This means the manufacturer has not optimized the fuel system, including the sensors and engine mapping, to handle high concentrations of ethanol.
VW Atlas Fuel Type and MPG Optimization Tips
The engine control unit will detect the lower quality fuel and automatically adjust the timing to protect the engine. Consequences of Using Lower Octane Fuel While the VW Atlas can run on regular unleaded gasoline with an octane rating of 87, doing so is not advisable for long-term use.
Recommended Fuel Grade for Optimal Performance For the majority of VW Atlas trims equipped with the standard turbocharged four-cylinder engine, the manufacturer recommends premium unleaded gasoline with an octane rating of 91. This mid-size SUV offers several powertrain options, and selecting the correct fuel specification ensures the engine operates as intended by the manufacturer.
VW Atlas Fuel Type and MPG Optimization Tips
Fuel Type Octane Rating Suitability for VW Atlas Premium Unleaded 91 Recommended Regular Unleaded 87 Acceptable (not ideal) E85 or High Ethanol Blend Variable Not Supported. Using the recommended fuel grade allows the engine control unit to advance ignition timing, delivering the power and efficiency the engineering team designed.
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