91 Octane Gas


#1

I have a 2002 Nissan Pathfinder that requires 91 octane gas. Until recently, I have only been able to get 89 or 93 octane, so I have been using 93. Now i can get 91 octane at the local 7/11. The funny thing is my car is getting better gas mileage now than with the 93 octane. I tried 87 and 89 but got terrible gas mileage. My question is if I am somewhere where 91 is not available, can I use equal parts of 93 and 89 octane and get the same results??


#2

Yes


#3

That’s what the stations do. They only have one low grade and one high grade holding tank and the pump does the mixing for mid grades.