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Old 06-04-2019, 05:54 PM   #27 (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
Quote:
Originally Posted by ksa8907 View Post
The oil is whatever the mfg specs and the dealer puts in. Oil pressure is similar to what you describe, go for a 2+ hour highway drive and report back. When the oil gets hot the viscosity drops and pressure goes to around 40psig cruising.

Don't forget this is a hybrid. The electric motors are also the generators so the hv battery can feed the 12v system.

At highway speeds the electric motors are just along for the ride and power is coming primarily from the engine. Even if the electric motors are providing motive power, that power is also coming from the engine which would mean again, it has to work harder therefore would benefit from numerically higher rear gears.

Edit: would benefit by staying in V4 more often.

I have no doubt we would get similar mpg to what you are if we lived in a warmer climate, had lighter wheels, had the aero improvements, and had 2wd not 4wd. I do love this vehicle though!
Have you cleaned out the HV battery?

the blowers in these HV are pretty much dust collectors

Last edited by Tahoe_Hybrid; 06-04-2019 at 06:10 PM..
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