I recently encountered a big issue with the Fiat 500 engine, which was designed pre-unleaded. All that the additives which I used seemed to have done is create a huge build-up of hard deposits inside the combustion chamber, and a valve seat dropped out after 16,000 miles of hard motoring.
Having successfully fired up Bluebell for the first time in months to get a look at where to continue the restoration, it's making me worry that I will eventually get the same issues on the 900 engine.
I know all the arguments about classic vehicles generally having an easy life and that thrashing them hard is what gives the problems, but it would be reassuring if by a slight chance, my very late (1985) vehicle is suitable for use with unleaded as I do not intend to give it an easy life!
Does anyone have any documented information or practical experiecne of this please?
Having successfully fired up Bluebell for the first time in months to get a look at where to continue the restoration, it's making me worry that I will eventually get the same issues on the 900 engine.
I know all the arguments about classic vehicles generally having an easy life and that thrashing them hard is what gives the problems, but it would be reassuring if by a slight chance, my very late (1985) vehicle is suitable for use with unleaded as I do not intend to give it an easy life!
Does anyone have any documented information or practical experiecne of this please?