XSeries-forum

Mine is 96l full. ok, i was wrong with full weight but still that will give you close to 100kg ,right at the back of your car. petrol tank is more to the centre and running on lpg you need to have at least 20l petrol. raj's is running h+r spring right? that'stiffer then oem. Any car on standard oem springs will drop rear with lpg. I still dont get an idea off that rear conversion. why? I found it one of the best things in x5...

These guys do standard and heavy duty X5 rear spring conversion kits on eBay so should be ideal if you are having air susp problems and have LPG! 

http://stores.ebay.co.uk/PJM-Direct?_trksid=p2047675.l2563