[Land-speed] Tires,Mileage,etc/non LSR ?

[sparky.2211 at cox.net]

The "SECRET" to good fuel economy is get in the higest gear possible and "STAY" there---I ordered my 1/2 ton truck with 4.10 gears---why---with my 30%  OD  it spend more time in OD---most vech. trans will shift back and forth under normal driving---mine hardly shifts ouyt of OD after I am at speed---ie. over 60---most GM trucks have 3.08-3.42 or 3.73s---Tires play a big part.---ie FDR---Final Drive Ratio