I have just bought a 2.0 zetec engine for the capri to transplant in with everything to go in!
but my problem is. i currently have a full tank of fuel with lead replacement juice in it (as the old pinto aint an unleaded engine)
would it be better to run this through the engine till the tanks nearenough empty and whack as much unleaded in as i can to dilute it as much as possible before the zetec goes in
or will it not do any harm to the newer engine, just make it run a little craply for a while as it runs through to pure unleaded??