fiesta bonus - 999cc

julieboo | 22:43 Fri 26th May 2006 | Motoring

2 Answers

i have just purchased a fiesta bonus regd. Nov 90
and have been told it runs on 4 star only - is this correct, surely an H reg would be running on unleaded?

please help, as i dont want to mess up the engine!!

fiesta chugging

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kopend

You are OK with unleaded don't worry.

jake-the-peg

The main problem with using unleaded in an engine that is designed for leaded petrol is wear on the exhast valves inside the cylinder head.

This tends to be a problem with classic sports cars but is likely to be less of a problem for you in a 1 litre fiesta. It tends to start happening more at high revs/speed so unless you're planning to do a lot of milage and motorway travelling I'd not worry.

If you're particularly worried there are a number of products from places like Halfords that you add to the petrol and you could give your car a dose of one of these now and again - but you probably don't need to!

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