Hi guys,Iam driving a corolla 90 running on a 4af engine and Tanong ko lang po kung tama po ba na dapat 700rpm idle w/o aircon yung makina and pagka naka aircon naman po ay 700 to 800rpm naman po.

I drove to NLEX days ago and pushes the car upto 140kph at 3800rpm. Question ko po. tama po ba ung rpm for that speed.

For tsikoters with similar engine type (4AF carb) ilan km po kayo per liter. sakin po kasi 7km/L. parang nalalakasan po kasi ako sa consumo.

ideas and suggestion is highly appreciated.

Thanks po.