I have recently purchased a Astra 1.6 estate auto that has an AG gas
conversion, the engine runs  OK. The problem is that I can only get 23
MPG on gas, I use the car for a mix of long and short jouneys. The
Astra has just passed an MOT. Has anyone have any experience with AG
systems that could help me find out what is wrong. I was hoping to get
at least 30 MPG.




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