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17 Posts
I ran my Insight at fixed throttle on near level road and was returning 75mpg. Simply by introducing LPG into the air intake my instantaneous mpg went up to 150 mpg as I opened the gas valve. Naturally my mpg did not improve but my running costs must go down as a result of the combined costs of the petrol and lpg used. I am new to Insight ownership (2 weeks) and would like to know if this subject has been aired before and if others have had any success in LPG conversion............