Both models have a reputation for good reliability. Personally I would go with the HiAce because the Express has an inferior 1-star safety rating - the same reason Mitsubishi discontinued the model in 2013. Remember if you run dual-fuel don't always run it on LPG. Run it on petrol from time-to-time. I'm also not an expert or very qualified to give an opinion these models as I have not owned or driven either of them. I own a 2006 HiAce diesel with 220KM and a 2007 HiAce petrol with 260KM.