My 2010 Prius has 80k on the clock.  There are many reports on priuschat.com/ of early Gen3s having high oil consumption, leading to blocked exhaust gas recirculation manifolds and stuck ERG valves which leads to blown head gaskets, and wrecked engines when they run over 100k miles.  My local (and trusted) Toyota main agent confirm that these failures do occur in the UK.  When asked about any preventative measures I could take the Dealer's Service Manager said: " Unfortunately the labour time to