The Volvo S40 will run perfectly fine if You're using regular unleaded gasoline with octane rating of 87 but this vehicle will also have the benefit of being able to use 91 octane or higher in order to receive increased performance. Not only will You notice that Your engine is running stronger when using premium but it will also extend the life of many parts in Your vehicle, especially the fuel filter. It will have a fuel tank capacity of 15.9 US gallons. The MPG rating will be 21 city and 30 highway. This vehicle isn't the best as far as range goes but it's not bad either.
Amy D.
April 9, 2020
The volvo s40 can run on regular 87-octane unleaded gasoline, but for maximum performance, it should be given 91-octane unleaded.
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