“Premium” is recommended for the 2.0 Turbo, but “Regular” is allowed also. I have been using E15 (15% Ethanol) in mine with reasonable MPG and good performance. It is also 88 Octane. 2018 JLUR 45,000 trouble free miles.
After a few problems with the 3.6L (broken oil cooler/filter assembly, sand left in block casting issue) I test drove the 2.0 eTorque, and bought a 2018 JLU with the 2.0 eTorque. Now after 40,000 trouble free miles and a 24.5 mpg lifetime average, I think the 2.0 is a winner.
I plowed with a ‘97 TJ for a few years and never had a issue. I set up the Jeep to handle the extra weight of the plow (6.5’ Sno-Way) by using Grand Cherokee V8 springs, and Timbren (?) overload bags. The Jeep sagged just a little with the plow on, and drove great the rest of the year. I found...