ads75
Well-Known Member
- Joined
- Jun 29, 2018
- Threads
- 5
- Messages
- 988
- Reaction score
- 1,401
- Location
- Reading, Pa
- Vehicle(s)
- 2019 2Door JL Rubicon in Mojito, 2022 Rivian R1T
I have to believe if the higher octane was beneficial (mileage or power) Jeep would take advantage of that. I don't know all the ins and outs of federal mpg testing, but if there was scientific, measurable difference, Jeep would recommend the higher octane and claim the better mpg. Until then, I will continue to use 87 unless I hit the premium gas button by accident (which my other car recommends)(and other cars for the last 10 years).
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