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Old 02-20-2020, 06:56 AM   #104 (permalink)
Tahoe_Hybrid
Master EcoModder
 
Join Date: May 2019
Location: California
Posts: 513

2020 - '08 Chevy Tahoe H
Last 3: 18.4 mpg (US)

2021 - '08 Chevy Tahoe H
90 day: 17.08 mpg (US)

2022 - '08 chevy Tahoe LT
Last 3: 14.38 mpg (US)

2023 - '08 Chevy Tahoe
Last 3: 22.61 mpg (US)

2024 - '08 Chevy Tahoe
90 day: 22.35 mpg (US)
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Quote:
Originally Posted by 3-Wheeler View Post
Darin,

I was reading the earlier comments in this thread and got the part where you discussing what gears to use to achieve about 1200 rpm at 55 mph, if I recall correctly.

So I used one of the ScanGauge channels to show rpm, and in the Insight this turns out to be 1200 rpm at 35 mph.

Now in the summer, this creates a very easy load for the engine, but in winter driving it is close to the bottom rpm I can run without the engine "throbbing" from the 3 cylinder engine pulses.

I guess I am wondering out loud if you could actually drive the car with a wind load at 55 mph and still maintain this engine rpm?

Seems pretty low to me.

Jim.
got you beat 1000rpm at 35-42mph

85mph =1800rpm 4 banger mode


with low end power it's a non issue is your insight VVT? you could gain some low end power using higher octane fuel you will also gain some MPG as they use summer gas for the higher octane
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