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Ok guys first time poster this is going to sound wierd but I got a vl commodore lol, look its no skyline but a skyline in disquise im savin for a 32 gtr but anyway just is there any way i can get better fuel economy like i barly make 400 to a 63 litre tank and its stok. Thanks for help guys

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well since i filled up i didnt drive it hard to test it out also i use bp91 or bp95 i use 98 once a month to clean cause i was told if i use 98 costantly it will burn my valves being a old car, also my car has a 63 litre tank but i think my sender is in accurate cause this morning the sender read a quater of a tank and wen i filled up it only took 30 litres so that means a quater is techacly half right?? lol so i worked it out if i had 30 litres left and i done about 350 i should get 700 to a tank. Correct me if im wrong lol?? thanks for reply btw.

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