Should I use a petrol additive in my classic Mercedes-Benz?

I have a 1966 Mercedes 230SL, which I use lead substitute whenever I fill it. Should I add a fuel system cleaner every so often and will the lead and fuel cleaner additives cause issues between them, or...

Can I use standard unleaded in my 1990 Mini Moke?

I have just bought a 1990 Mini Moke, but the dealer is not sure if the cylinder head has the hardened valve seats to use unleaded petrol. Do you think it would be okay to use unleaded? Also, should I use...

I'm unsure if my 1982 Ford Sierra was converted to unleaded - should I run it with lead additive or on unleaded petrol?

I recently returned to the road my 1982 Ford Sierra 1.6 (petrol, pinto, manual) I believe it came off the road in 2002 or earlier, long before I purchased it, and I'm unsure whether or not it has been...

Bentley S1 Saloon and Continental (1955 - 1959)

Even better to drive than before thanks to power steering, elegant and timeless in saloon form, beautiful as a coupe