4 things always apply, being an ASE tech I listen to it every winter:
Drive like a sane person, city streets arent a race track lol. When your packing a turbo its hard to overcome subconscious heavier foot. I know that WAY too well lol. You think your driving normal, bet money your actually driving like the other 10k jackasses and sucking fuel like mad to do it.
Check your tire pressures, when it gets cold tire pressures drop
Its winter time, different fuel blend and its cold, not going to get same mileage. Just like expecting to get max rated mpg city with AC blasting in the summer. Not going to happen. Things are cold, meaning stiffer, running heat etc. Adds up especially if you drive heavy footed.
Dont put the cheapest, especially ethanol fuel in your tank. Ethanol costs MPG.
I get almost 24 city in my 2003 in the cold right now with over 200k on it, and I occasionally drive like an *******. I also run no less than 89 octane, non-ethanol fuel only.
New hondas or old hondas, these rules have never changed in all my years with every Honda I or anyone I know has owned.
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