++on the Top Tier recommendation!I only used premium '91' in my '16 Touring and I wouldn't get over 28mpg. I finally switched to '89' after 20k miles. I'm now at 30k miles and I'm now up to 35.7 mpg and still climbing. I know the '16 1.5l motor was tuned to run on 89. Now obviously you can run 91 or 93 with the Hondata Reflash but if you're stock, run 89. Your car & wallet will thank you. I just wish I would have done it sooner.
On a side note I only fill with top tier. It makes a difference people.
The 1.5T is tuned for 87 Octane.++on the Top Tier recommendation!
So you said the 1.5 is tuned for 89? Do you know about the 2.0? Where did you see this information?
The 1.5L Turbo does not have an octane sensor on it. We've got a knock sensor to pull timing if it's seeing pinging, but nothing to tell the ECU what fuel is being fed.
You also didn't answer the question. Flex fuel cars will adjust timing based on the octane they are reading. Timing does affect HP numbers, but at this level not very much. We're probably talking less than 1hp.
You are right about marketing tho. This is why I wouldn't waste the money on the SI considering it has the same engine my EX-T has, but with some bolt ons and a better tune. 6MT would be nice tho
heat will kill our turbos. Anytime its hot out, the ecu wants to pull timing which lowers boost which kills output. If you are tuning with ktuner, you can adjust the ign tables to pull less timing even when hotI've been running 87 octane on my ex-t coupe since I bought the vehicle. I can't tell if there's knocking going on, but I've noticed on WOT I get a afr of 10:1 and significantly lower performance since I purchased the vehicle in February. Either I've got a boost leak or the ECU is flooding the engine to prevent pre-detonation. So, IMO, if you've got the turbo model, running 91-93 octane would be better, but as for the LX model, there is no turbo, and tier 1 fuel with detergents is the best bet.