In my experience with 2.0L turbos higher octane always equates to higher power and torque.
I owned a VW GTI with a 2.0L turbo and Stage I flash from APR. Here's their dyno chart numbers for 91 and 93 octane:
91 octane
HP - 253
TQ - 309
93 octane
HP - 261
TQ - 317
No noticable difference. And it took me a long time to convince myself I wasn't doing something "bad" by running 87. Now I smile at the pump (kind of, keeps me from crying), because the stations all show the 87 octane price, to be competitive, then gouge you on the 91. Sucks, as all my other vehicles run on 91 and will NOT run on anything less. (4 motorcycles, a RZR Turbo and a Mustang GT).You guys are leaving something out. You are not taking into consideration as to how the factory has the ecm programmed. If it is programmed for low octane, then the programming will not let the benefits of higher octane happen. We did a comparison on chevy Euinox. One with the 1.5T with 87 stock tune, and one with the 2.0T with factory 91 tune. Putting 91 in the 1.5 showed no difference in power, and only a slight increase in fuel miles based on the ability to ignite better. So I would be interested in knowing what fuel was in the 2.0T Jeep engine to get their power numbers. Did they use the low grade, or high grade?
Well they will run, just have to keep your foot off the throttle.Sucks, as all my other vehicles run on 91 and will NOT run on anything less. (4 motorcycles, a RZR Turbo and a Mustang GT).
Correct! It pings and knocks. But not the 2.0 Turbo. Like someone else said, the ECU's were designed on these to run on 87.Well they will run, just have to keep your foot off the throttle.
i have an aggressive 93 tune on an l86 (vette motor)and it runs just fine if the gas station attended puts in 87 by accident, just can’t get on the throttle too much
As it lists both octanes in the OM, it will adjust to either, normally by sensing the knock of 87 and backing off the timing to compensate.Correct! It pings and knocks. But not the 2.0 Turbo. Like someone else said, the ECU's were designed on these to run on 87.
It’s done in fractions of a secondit’s pretty apparent that the engine runs rough until it figures out the correct timing.
Very well could be quick in the 2.0. Ram went as far is to comment on knocking on 87 in the OM:It’s done in fractions of a second
Very well could be quick in the 2.0. Ram went as far is to comment on knocking on 87 in the OM:
While operating on gasoline with an octane number of 87,
hearing a light knocking sound from the engine is not a
cause for concern.
Since you can't hurt the engine using any of the 3 (87/89/91), Try them all and see if you can feel the difference. Unlike a "premium only" engine requirment, you can use whatever you feel is most beneficial for your needs.i wonder what 89 octane would give you a good middle ground of the two
Very well could be quick in the 2.0. Ram went as far is to comment on knocking on 87 in the OM:
While operating on gasoline with an octane number of 87,
hearing a light knocking sound from the engine is not a
cause for concern.