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Hypermiling the Chevy Tahoe 6.0L v8 40MPG! :O
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06-10-2019, 10:01 PM
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Tahoe_Hybrid
EcoModding Apprentice
Join Date: May 2019
Location: California
Posts: 121
Hyhoe
- '08 Chevy Tahoe HY2
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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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