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Old 05-01-2021, 02:47 AM   #1 (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)
Thanks: 2
Thanked 105 Times in 96 Posts
Good place to get started ? want to get at lest 40-45MPG.highway.

I would like to start Aero modding my HYBRID SUV

times are tough and it's 3.99 a gallon here (91 octane)


my 6.0Liter V8 ❤ 91 octane


it has a 6 speed with 3 OVERdrive gears


4th = traditional transmission mode Primary OD Gear at about 30mph

Second mode:
[EVT1]5th = OD 35mph+
[EVT2]6th = OD it's rarely in this Gear only a feather light load will keep it in this gear (or deceleration event) mostly at 38mph to 49mph(with a tail wind above 45mph)


The Goal is to get 40mpg to 45MPG out of it on the highway and at lest 30MPG+ in the city

AFM is disabled via Rangetechnolgy Performance Chip....(at this point it's cheaper to spend money on gas then spend it repairing the engine because of a lifter failure bc of AFM, that would cost $3,000-3500 repair bill)





I all ready have the Tires pumped up, to 50PSI using

Michelin Energy Saver Tires, these are ultra light weight tires....


I see the underbody has plenty of low hanging fruit

I did notice a HUGE parashoot area between the second muffler and bumper... (I'm sure this could rob MPG)



keep in mind this is RWD so objects need to be keep away from the aluminum drive shaft. most likely i would not be able to find another one if it was to get damaged.. since it trim specific... and they don't make the part anymore..








Don't tell me to buy a prius

if I wanted to die in a accident i would have bought a smart car instead...


The speed limits are high in my AREA 45 to 60mph in the surface streets and if you get hit at that speed you're dead.... even if you have 20 air bags

I have seen it happen lots of times

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Last edited by Tahoe_Hybrid; 05-01-2021 at 03:38 AM..
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