Fuel requirements

Use only premium-grade unleaded gasoline.

The octane number should be at least 91.

Details can be found on the gas pump. The octane number is the average value of the Research Octane Number (RON) and the Motor Octane Number (MON): (RON + MON) / 2, also known as knock resistance.

Reformulated gasoline (RFG) and/or unleaded gasoline with additives can be used.

However, the concentration of additives in the fuel must be less than 10%, e.g.
• Ethanol
• TAME
• ETBE
• IPA
• TBA

For MTBE, the concentration should not exceed 15%.

The concentration of methanol in gasoline including other additives must not exceed 3%.

Using mixtures of methanol and ethanol is not permitted. Gasohol, a mixture of 10% ethanol and 90% unleaded gasoline, can be used.

All of these mix fuels must fulfill the fuel requirements, e.g.:
• knock resistance
• boiling point
• vapor pressure

    See also:

    Front air bags
    The front air bags increase protection for the driver's and front-passenger's head and chest. Driver's air bag 1 deploys in front of the steering wheel; front-passenger front air bag 2 depl ...

    Important safety notes
    Parking Guidance is an electronic parking aid with ultrasound. Ultrasound is used to measure the road on both sides of the vehicle. A suitable parking space is indicated by the parking symbol. ...

    Cabin Quality
    If the cockpit in a Cadillac Escalade or Infiniti QX56 feels like a roomy lounge, the GL550's cabin is eminently more carlike. Don't expect massive armrests and a tall dashboard — rather, the wrap ...