Typically 5 to 10 percent reduction of fuel mileage on LPG as compared to gasoline.
This is due to LPG's slightly lower energy value per liter as well as slight inefficiency of using engines designed to use gasoline to run on LPG. A bit of adjustment/tuning can improve the LPG fuel mileage but it will compromise the way your engine will run on gasoline.
Anyway, if you have done enough back reading, the most important way is the ignition timing. With LPG you can advance it a lot more. But if you switch to gasoline, it will cause the engine to knock.
In my experience, the engine's stock setting is good enough.
You might also want to check out the Sentra N16 model. My brother has one also running on Auto-LPG. It's the Sentra model Nissan Phil has been selling since 2002 until now.
LINK:
http://tsikot.yehey.com/forums/showthread.php?t=51318
Currently I would suggest XOOM Auto-LPG (Timog in QC). It is a refilling station as well as an auto-lpg installation shop. Just mention to Nick that "ghosthunter" recommended you.
Contact info: Nick Go
Mobile Landline: (02)5067734
Reason why not others?
NAIADSS seems to have gone out of business. They used to have a station and install shop at Pioneer St in Mandaluyong but it's not there anymore (site under construction, dunno what is being built there).
As for GREENFUEL, I have no contact with them in months. I don't know their current financial status but since their business is only in the auto-lpg installation, the "dry-spell" in between 2008 and 2010 kinda was hard on business.
You can still try contacting GREENFUEL as their contact info in the list should still be working.
Originally Posted by ghosthunter
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Originally Posted by ghosthunter
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