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    Additives work best

    Toyota Toyota Advice Toyota Corona Toyota Corona Advice Toyota Corona 1981
    I RECENTLY bought a 1981 Toyota Corona wagon with the 1892cc motor which I believe was imported from Japan and is better than the local model that had a different engine. It's a one-owner car and drives well. The previous owner ran it on unleaded with an additive. Can it run on straight unleaded?
    Answered by CarsGuide
    2 August 2007
    Carsguide.com.au

    CHECK the engine is a Toyota engine because Toyota was fitting the Holden 1.9-litre overhead-valve four-cylinder engine to the Corona at that time. The capacity you quote suggests yours has the ``misfire'' four in it. If it's a Holden engine the compression ratio was 8.7:1, but it's likely to be less than that now. If it runs well I'd continue to use unleaded with an additive.

    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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