Up Hear in Qld A few Guys in a datsun club NEVER USE any fuel From Caltex
As do i Only Use BP 98. I would get around 280ks out of 30 liters
On a Stock A12. I recently started useing a octant boster with just 91.
on long drive,s that i have been doing i got almost 100ks more out of 30L
And the car runs better now