[G37daysAWeek]

I talked to a G35 Coupe owner the other day and he said that he has put regular (87) octane in his G35 since he bought it, alternating with premium only every 8 or 10 tanks. He said that the notices no difference in fuel economy or performance but saves huge on the cost of gas.

I have heard that in the new G37 engine, this may not be the best idea. Has anybody tried putting gas other than premium in their car??

what are the results??