I've had 4 cars that were Gas powered
MK with 2.8L petrol gas
AUII dedicated Gas
GQ 4.2L carby petrol gas
GU 4.2L Diesel Gas

I do like it , but not the cost to get it fitted
lucky, all my cars were already fitted before I brought them

when I brought the MK - Gas was $0.21 per Liter
used to cost $22.00 to fill the 80L tank, and used to do about 400Kms in it per week