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    Calais fuel economy

    Holden Holden Advice Holden Calais Holden Calais Advice Holden Calais 1999
    The fuel consumption on my 1999 VX Calais V8 continues to creep up and currently reads 17.1 L/100 km even though it has been well maintained. Any ideas why?
    Answered by CarsGuide
    9 December 2010
    CarsGuide team

    You don't say by how much it has crept up and whether it's been a gradual increase or a sudden jump, but Holden's claim for town running was 15.0 L/100 km for a 1999 VT V8 and 13.5 L/100 km for a later VX V8. If it's running well and still packs a powerful punch you should look at those items that might affect the tuning of the engine. Replace the spark plugs, the plug leads, the air filter, perhaps clean the throttle body and give it a good run to blow out any carbon build-up.

    Disclaimer: You acknowledge and agree that all answers are provided as a general guide only and should not be relied upon as bespoke advice. Carsguide is not liable for the accuracy of any information provided in the answers.
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