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Old 06-10-2019, 09:01 PM   #30 (permalink)
Tahoe_Hybrid
Master EcoModder
 
Join Date: May 2019
Location: California
Posts: 371

Tahoe 2020 - '08 Chevy Tahoe H
90 day: 20.75 mpg (US)
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Switching over from chevron 91 octane to Shell V-Power 91 octane

They claim to have a new formulation
we will see if it "helps or hurts MPG"
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