Exxon, BP & Shell- Which gas station gives the best performance?

Question

I fill up premium since my Lexus ES 350 requires it.

Is it also true that I can put Shell's mid-grade gas and it'll be as if I put 91 octane, due to the quality of gas?

Thanks

Answer 1

I drive on average of 100,000 + miles a year,  I have had best milage and best performance from shell and sunoco gasoline's.  Most of my trucks average 500,000 miles before i trade them.  I don't have any problems with them as long as i use one of these two products.   Good luck !!   And yes, I use 91 or 93 octane ,,do  the math, about 3.00 more per tank ?  

Answer 2

There is no proven fact that 91 grade is better than regular gas and unless your car calls for it you are just being ripped off.. Techron gas by Chevron is the best