Thread: 91 octane fuel in a N/a 3800 good or bad?

Originally Posted by Jomamma

It will however decrease your gas mileage.

When 87 is 10% ethanol and 91 is 0%, are you sure?

OP, try shell V power and see how the economy is on that stuff.

Originally Posted by matt5112

When 87 is 10% ethanol and 91 is 0%, are you sure?

OP, try shell V power and see how the economy is on that stuff.

Thanks, ill try the shell v power, in my dads ford ranger when he puts 91 octane in it, it usually gets way better mileage.

Originally Posted by thomasd2010

Thanks, ill try the shell v power, in my dads ford ranger when he puts 91 octane in it, it usually gets way better mileage.

Check on the pump, it should tell you how much ethanol is in it.