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    Immaculate protection

    Mitsubishi Mitsubishi Advice Mitsubishi Sigma Mitsubishi Sigma Advice Mitsubishi Sigma 1982
    MY dad gave up driving and gave me his immaculate 1982 Mitsubishi GJ (2.6) with 160,000km on the clock. With the phasing out of LRP, should I use a valve seat protection additive, or can I run it on unleaded? According to the owner's manual, the recommended fuel is 89 RON. What do you recommend?
    Answered by CarsGuide
    23 September 2004
    CarsGuide team

    YOU could run it on unleaded, but you will eventually wreck the valves through lack of lubrication. The idea then would be to replace the valve seats with the hardened seats such as those used on LPG engines. Other than that, run regular unleaded and an additive such as Valvemaster.

    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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