yes, mate, you are right, I will check with my installer, which I don't think they will have issues with that.
I am bit "Green" person, and I had all my family cars done (5 of them, even the one cleaner/house keeper uses, inc the RX Missis uses) and 10 Vans in my London branch (congestion charge reasons). All other branch Vans run on Bio-diesel) only one I had issue with was 8 years ago, that was a BMW Z3. (don't laugh)
Yes, I did hear a lot of stories about the LPG on IS200 bla bla.......... I just love the IS200, not cos I can't afford an IS250, I just love it.
The way I look at is this, if one day the engine did dead on me which I don't think it will, I just get other good 2nd hand engine costs from 400-800, most likely I will get the best one I can get hold of. and stop using LPG on the new engine.
I can see most of my staff all drive "better" or "newer" cars than me, so what.........
Felix
P.S. in my case, as I use the installer to do all my cars/vans, I only paid 1200 cash for the best system suits IS at his cost (normally 2000)