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Old 06-22-2019, 03:09 AM   #1 (permalink)
Tahoe_Hybrid
Master EcoModder
 
Join Date: May 2019
Location: California
Posts: 512

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
90 day: 25.57 mpg (US)
Thanks: 2
Thanked 105 Times in 96 Posts
MPG by BRAND TEST 2008 Tahoe 6.0L v8.. (REAL World tests)

Test vehicle: 2008 Chevy Tahoe 6.0L v8 Hybrid
with Active Fuel Management V4 With: VVT

Using 91 Octane


It's fair to test a 6.0L v8 That is the only way to know if your getting the best BANG for you buck...


Testing method will be real WORLD conditions because we don't use our cars on a tread mill or in a lab or driven by computers



throttle will be used genital to keep Active fuel management on as much as possible (aka v4) CC maybe used based on REAL current ROAD Conditions (so if there is a lot of traffic it will not be used)

SPEED will be set to 59MPH on (cruse control)
which I found to be the optimal speed (MPH to MPG ratio)



I have been Testing different Fuel brands
1 month test for each

to put it this way CHEAPER or even TOP Tier Fuels
will not give you the best bang for your buck..


Yes they might be 5-10c cheaper
then Chevron/Texaco .

I average 25-26 MPG Combined* with Chevron with Techron Fuel..

(*my city speeds between 45MPH and 60mph with traffic lights )


I will be testing soon
Mobil/Exxon Fuel Top tier brand.. Next
USA gas (by ‎Marathon Petroleum)
76 brand.. Top tier brand..





Testing will be ended on the spot if MPG under delivers or on EPA EST value..
( i can't afford to be spending too much on gas LOL)
like shell fuel did..
Top tier brands so far.
Using 91 Octane Fuel...

Shell fuel (16.1mpg City) 19.78MPG highway 18MPG combined (only 3MPG BETTER THEN THE NON-HYBRID 5.3L )
BP/Arco 21MPG combined
Chevron/Texaco 26.8MPG combined..




Based on the current MPG I expect to burn about 7.5 to 9.3 GALLONS and i 'm NOT happy with that for a 156 mile trip on have on Sunday
With the FULL tank of Shell gas




Chevron is 5.2 Gallons at 156 miles or 26.73MPG BEST 5.2-5.7 typical for 156 miles route I take


AFM is seen often in v4 mode aka Eco mode with chevron

Watch my fuelly log..
http://www.fuelly.com/car/chevrolet/...brent88/905265


Last edited by Tahoe_Hybrid; 06-22-2019 at 03:18 AM..
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