fuel Econ
#1
Staging Lane
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Join Date: Mar 2004
Location: Kansas
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fuel Econ
What is a good crusin speed on the highway to get max fuel econ. Right now i drive about 100 miles every few days, and i have a little heavy of a foot and i drive about 77 or 78 on the highway and i get only about 14 or 15 mpg. Any suggestions. I have an 03 Ext 5.3 Z71. Any ideas on how to get a lil more fuel economey?? thanks in advance
#2
Originally Posted by silverado_03_z71
What is a good crusin speed on the highway to get max fuel econ. Right now i drive about 100 miles every few days, and i have a little heavy of a foot and i drive about 77 or 78 on the highway and i get only about 14 or 15 mpg. Any suggestions. I have an 03 Ext 5.3 Z71. Any ideas on how to get a lil more fuel economey?? thanks in advance
Jay
#3
65-70mph tops is best for me. I get about 16.5 avg if I cruise 65mph on the freeway and 15.5 avg if I cruise 70mph on the freeway...this is mixed with mostly freeway.
Only city is about 15mpg and only freeway is right about 20mpg.
But remember I drive slow on the freeways. You drive a BOX not an aerodynamic car, drags increases exponentially as speed increases hence the fuel economy loss.
ALSO, this came only after my custom tune. My best was right about 17mpg freeway only stock tuning.
Only city is about 15mpg and only freeway is right about 20mpg.
But remember I drive slow on the freeways. You drive a BOX not an aerodynamic car, drags increases exponentially as speed increases hence the fuel economy loss.
ALSO, this came only after my custom tune. My best was right about 17mpg freeway only stock tuning.
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#10
Originally Posted by Hit Man X
Oh I forgot to mention that I have 3.73:1 gears and 285 ATs on the truck so my cruise RPM is too low... 70mph @ 1800rpms sucks.