please help..if dynamic compresion ratio is :4.2:1 what octane gasoline do I use ?4.8:1 what octane gasoline do I use ?5.4:1 what octane gasoline do I use ?6.0:1 what octane gasoline do I use ?6.6:1 what octane gasoline do I use ?7.2:1 what octane gasoline do I use ?
please help..
if dynamic compresion ratio is :
4.2:1 what octane gasoline do I use ?
4.8:1 what octane gasoline do I use ?
5.4:1 what octane gasoline do I use ?
6.0:1 what octane gasoline do I use ?
6.6:1 what octane gasoline do I use ?
7.2:1 what octane gasoline do I use ?