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Old 08-07-2014
WJBRUTE  WJBRUTE is offline
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Default Lpg
If it's any help I have been running Sequential Vapour Injection on my WJ 4.7 for approx 3 years. Veh has done 299,000 klms. I had mine fitted with the 85ltr donut tank, 72lts usable. Instead of lowering the tank I built a higher cover for the spare wheel cover. Originally I was getting an average of 390k from 72lts for a mixture of highway, suburb and mountain travel. My Grand has climate control and I was noticing that the Air Con compressor was continually running even if it was turn off by the controls. 12mths ago I put a cut off switch to the compressor which i control by a seperate switch from the dash. My average for 72lts is now 410klms. If I drive a long trip sitting on 100ks I can get anywhere from 480 - 500 ks from the tank, depending on the conditions. If I do 110kph this drops to 470 - 490. Nothing has been replaced or modified on my engine. Cheers