Glad to see their longevity is improved. I had a '74 RX-4 and the conventional wisdom at the time was that you'd get 70-80k miles before you'd lose compression on one of your tip seals. My dad got 80k on the first motor so we weren't too bummed. We changed the motor for a new one and it was still going strong when the body rusted away so badly it wasn't worth fixing. Fun car, though.