I'm scratching my head a little bit, when i first bought my wagon ( just a six dual fuel), i changed the oil and put synthetic 15W40 (shell i think), but shortly after (maybe a month) i found half the oil was gone (car has zero leaks), so i put in some Nulon Mineral 20W50 and on checking the oil yesterday I found the level has also dropped a fair bit, this things burns oil which is strange because the spark plugs have no oil on them.
Being dual fuel, it might cost the same in regular oil top ups as the LPG.
