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Old 03-02-2013, 01:34 AM   #15 (permalink)
wmjinman
Master EcoModder
 
Join Date: Oct 2012
Location: Carson City, Nevada
Posts: 612

Jimmy - '00 GMC Jimmy SLT
90 day: 21.18 mpg (US)

The White Gnat - '99 Suzuki Swift
Team Suzuki
90 day: 51.87 mpg (US)
Thanks: 240
Thanked 114 Times in 90 Posts
Wow, really? You got better mileage with 10w30 than with 5w20?!?!?! That sure is counter-intuitive, huh? Were these the same brand & type oil? (synthetic, etc) And was that better mileage consistant throughout that whole time with the heavier oil? Definitely some "food for thought"!!!
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