On Mon, 21 Jul 2008 14:18:40 +0100, Derek
wrote:

Friend has a petrol lawn mower, runs on 4star petrol, can he use unleaded
petrol,
He says getting 4star difficult

Thanks

If it has a Briggs & Stratton engine made in the last 40 years or so
unleaded will be fine. They were built for unleaded fuel long before
it was even available in this country.