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Old 11-09-2017, 06:13 AM   #5 (permalink)
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Join Date: Dec 2011
Location: Vermont
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Gaptooth (retired) - '00 Honda Insight
Team Honda
Gen-1 Insights
90 day: 54.26 mpg (US)

Such Fit - '07 Honda Fit Sport
90 day: 41.27 mpg (US)

Connect - '15 Ford Transit Connect XL
90 day: 24.03 mpg (US)

K-sight - '00 Honda K-sight
Team Honda
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For what it's worth, 10k miles on Mobile 1 0w20 in my engine and it was still basically a 0w20; viscosity had not changed measurably. I'm inclined to think that viscosity modifiers, at least in my case, will not break down before other additives are depleted.

Right now I'm running Honda's Green Oil, which is considerably thinner than 0w20. I'll probably have an oil analysis done in a few months for you to look over.
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