Unleaded bliss

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Our ``hack'' for around town is a tidy little 1983 model Mazda 626. In the event that lead replacement petrol becomes obsolete, would you please advise if we would cause any damage/harm to it by running it on unleaded petrol?

Answered by CarsGuide

5 December 2003

Carsguide.com.au

Your engine has an alloy head and hardened valve seats, so it should cope with unleaded without a drama. The only consideration is which unleaded is best for it. The regular unleaded is a lower octane rating than the LRP, so it might ping if you switch to that. If it does, use PULP, which has the same octane rating as LRP.

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