8th Generation Honda Civic Forum - View Single Post - Civic Si: Your Gas Mileage
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Old 01-08-2007, 09:50 PM   #42 (permalink)
Usui
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Join Date: Jan 2007
Location: WC, CA
Age: 30
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My first 2 tanks I'm at 22.8 mpg... which is terrible because I bought the Si instead of something else because I thought I'd easily get 28 or better. I'll give it some time as the engine is still breaking in and it's winter.

I just wanted to know what gear speeds are the cruising speeds. I've been trying to keep the RPMS above 3000 as it feels like the engine is bogging below that. If it's better to cruise at a gear with the RPMs at ~2500, then I'd like to know.
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